Fabrics & Performance

Bloomto has a dedicated in-house Fabric R&D team with textile engineers and technicians who specialize in developing and sourcing innovative performance fabrics. Our R&D focuses on four areas: stretch performance, moisture management, durability/anti-pilling, and sustainable material innovation. Fabric R&D Capabilities Custom Fabric Development Proprietary blends developed for specific performance requirements Fabric Testing Lab In-house testing: tensile, tear, pilling, colorfastness, stretch recovery Sustainable Innovation rPET blends, biodegradable elastane, low-impact dyeing R&D Supplier Partnerships Direct relationships with premium mills in Taiwan, Korea, and China Our R&D team brings 15+ years of combined textile engineering experience. We hold 3 fabric invention patents and have developed exclusive blends for major activewear brands. Recent innovations include a 78% rPET + 22% biodegradable elastane blend that passed OEKO-TEX certification while maintaining 4-way compression performance. R&D Team Size8+ specialistsYears Experience15+Fabric Patents3+Mill Partners20+ Related Questions What fabrics does Bloomto use for custom activewear?How does Bloomto ensure color consistency in bulk production?What sustainable materials does Bloomto use for activewear? Need a custom fabric developed for your activewear line? Bloomto's R&D team can make it happen. Talk to Our R&D Team

Bloomto uses a growing range of sustainable materials: recycled polyester (rPET made from post-consumer plastic bottles — 1 kg of rPET recycles approximately 27 PET bottles), GOTS-certified organic cotton, Tencel lyocell (closed-loop production), biodegradable nylon, and eco-friendly packaging. All sustainable materials carry third-party certifications. Sustainable Materials & Impact Data MaterialSourceEnvironmental BenefitCertificationRecycled Polyester (rPET)Post-consumer PET bottles32% lower carbon vs virgin; diverts plastic wasteGRSOrganic CottonCertified organic farms91% less water, no pesticidesGOTS, OCSTencel LyocellSustainably harvested wood pulpClosed-loop; 99% solventFSC, OEKO-TEXRecycled NylonPost-industrial wasteReduces virgin nylon use by 50%ECONYL certifiedBiodegradable NylonRenewable sourcesDecomposes in 5 years vs 40+OK Biodegradable Bloomto's commitment to sustainability extends beyond materials. We track our environmental impact: in 2025, our rPET usage diverted approximately 2.8 million plastic bottles from landfills. We partner with GRS-certified yarn suppliers and maintain full supply chain traceability. rPET Bottles Diverted (2025)2.8M+Carbon Reduction vs Virgin32%Eco-Material Options6+Certifications HeldGRS, GOTS, OEKO-TEX Want to make your activewear line more sustainable? Bloomto's eco-materials make it easy. Explore Sustainable Options

Bloomto ensures color consistency through a multi-step process using spectrophotometer color matching (Datacolor 600), AQL 2.5/4.0 standards per ISO 2859, batch-by-batch color approval, controlled dyeing conditions, and inline shade sorting during cutting. Every production run is compared against the original approved standard. Color Consistency Process 1 Pantone Standard Creation Master standard is created and approved via spectrophotometer reading and visual approval under D65 light 2 Lab Dip & Bulk Approval Lab dip matched to standard (Delta E 3 Inline Shade Sorting Every roll sorted by shade during cutting; rolls from different dye lots separated 4 Final Inspection Finished goods inspected under standardized lighting; AQL standards applied Industry data shows that color inconsistency is the #1 quality complaint in garment manufacturing. Bloomto's spectrophotometer-based system maintains Delta E (ΔE) below 1.0 — the industry standard for 'imperceptible color difference' — across all production batches. Color MeasurementSpectrophotometer Datacolor 600Acceptable Delta ELight StandardD65AQL StandardAQL 2.5 / 4.0 Consistent color is critical for your brand. Bloomto's quality control ensures every batch matches. Learn About Our QC Process

Bloomto balances sustainability with quality by selecting only premium-grade recycled and sustainable materials that meet or exceed the same performance benchmarks as their conventional counterparts. Every sustainable fabric undergoes the same rigorous testing — stretch recovery, pilling resistance, colorfastness, and tensile strength — before it enters production. How Quality Is Maintained Same Performance Tests Sustainable fabrics tested to same AATCC/ISO standards as conventional Third-Party Verified All eco-materials come with certification and lab test reports Squat-Proof Guarantee Multi-directional stretch testing ensures opacity under tension Durability Matched rPET matches virgin polyester in 150+ wash cycle retention Independent studies confirm: recycled polyester (rPET) performs identically to virgin polyester in moisture-wicking, tensile strength, and colorfastness. Bloomto's rPET leggings have undergone 20,000+ Martindale rub cycles with no pilling — matching our conventional nylon/spandex standard. rPET Abrasion Resistance20,000+ cyclesColorfastness Rating4.5/5Wash Cycle Retention150+ cyclesStretch Recovery92% after 100 uses Case Study Bloomto developed a 78% rPET + 22% biodegradable elastane blend for an Australian activewear brand. Independent lab testing confirmed: the sustainable blend matched conventional nylon/spandex in stretch recovery (95% after 50 washes), squat-proof opacity, and moisture-wicking. The collection sold out in 3 weeks. Want eco-friendly activewear that doesn't compromise on quality? Bloomto delivers both. See Our Sustainable Collection

Bloomto uses a wide range of performance fabrics including nylon/spandex blends, polyester/spandex, recycled polyester (rPET), organic cotton, Tencel lyocell, and specialty performance knits — all engineered for 4-way stretch, moisture-wicking, anti-pilling, and durability. Fabric Options & Performance Data Fabric TypeKey PropertiesBest ForEco-FriendlyNylon/Spandex4-way stretch, shape retention, soft hand feelLeggings, sports bras, bodysuitsRecycled nylon availablePolyester/SpandexMoisture-wicking, quick-dry, colorfastTops, tanks, running gearrPET (recycled) optionRecycled Polyester (rPET)Same performance as virgin, 32% lower carbonAll activewearYes — GRS certifiedOrganic Cotton/SpandexBreathable, soft, hypoallergenicYoga wear, loungewearYes — GOTS certifiedTencel LyocellBiodegradable, moisture-managing, silkyPremium yoga, lifestyle wearYes — closed-loop process Every fabric at Bloomto undergoes rigorous testing: pilling resistance (Martindale 20,000+ cycles), colorfastness (AATCC standard), tensile strength, and stretch recovery. Our Fabric R&D team continuously develops new blends that balance performance with sustainability. Fabric R&D TeamDedicated teamTesting Standards ISO9001Eco OptionsrPET, Organic, TencelCustom BlendsYes Need help choosing the right fabric for your activewear line? Bloomto's fabric experts are here to guide you. Get Fabric Consultation

GRS + OEKO-TEX® Together Deliver Maximum Brand TrustFor synthetic activewear made from recycled nylon or polyester, combining GRS (Global Recycled Standard) and OEKO-TEX® STANDARD 100 certification delivers the strongest brand trust. GRS verifies recycled content claims and supply chain traceability, while OEKO-TEX® independently tests for harmful substances—together they address both sustainability and consumer safety in one garment.What Each Certification BringsGRS CertificationVerifies recycled content claims, requires chain-of-custody traceability, and enforces environmental and social criteria throughout the supply chain. Best for proving your products genuinely contain recycled materials.OEKO-TEX® STANDARD 100Tests every component for harmful substances through independent laboratory analysis. The most recognized consumer safety label for textiles, giving customers confidence that your activewear is free from chemicals of concern.Which Scenario Fits Your Brand?Your FocusBest CertificationWhyRecycled synthetic activewearGRS + OEKO-TEX®Covers both sustainability claims and safety testingOrganic cotton activewearGOTSComprehensive organic standard from field to finished garmentRecycled content claims onlyRCS or GRSContent verification without broader social/environmental criteria (RCS) or with them (GRS)Safety assurance onlyOEKO-TEX®Independent lab testing for harmful substancesKey insight: Major retailers increasingly expect dual certification. A GRS + OEKO-TEX® label tells a retailer you have met both recycled-content traceability and consumer safety standards in one product, reducing compliance friction significantly.Making the Choice If you sell synthetic activewear and want maximum credibility—choose both GRS + OEKO-TEX®. If you start with one, begin with OEKO-TEX® for broad consumer safety appeal, then add GRS as recycled-content claims become important. For organic cotton collections, GOTS alone is sufficient and widely recognized.Not sure which certification pathway fits your product line? Speak with our compliance experts for a tailored recommendation.

Yes—Multi-Certification Is Possible and Increasingly CommonA single activewear garment can carry GRS, OEKO-TEX®, and GOTS certifications simultaneously, provided the materials, production processes, and chain-of-custody documentation satisfy each standard independently. This is common for premium sportswear that combines recycled synthetics with organic cotton blends.How Each Certification OverlapsCertificationPrimary FocusMaterial ScopeKey RequirementGRS (Global Recycled Standard)Recycled content + environmental & social criteriaSynthetic fibers (recycled polyester, nylon)Minimum 20% recycled content, chain of custody, wastewater treatmentOEKO-TEX® STANDARD 100Product safety (harmful substances)All textile componentsIndependent lab testing, annual retesting, no restricted chemicalsGOTS (Global Organic Textile Standard)Organic fiber content + processingNatural fibers (organic cotton, wool)Minimum 70% organic fibers, strict chemical and processing rulesPractical Example: Blended ActivewearRecycled Polyester ComponentThe synthetic portion can be GRS-certified to confirm recycled content. The same garment is also tested for harmful substances under OEKO-TEX®.Organic Cotton ComponentIf the garment contains organic cotton, the organic fiber input must be GOTS-certified, with separate TC certificates tracking the organic content through production.Important: Each certification has its own audit cycle and TC (Transaction Certificate) trail. The factory must maintain separate records for each standard, and auditors will verify each certification independently during on-site inspections.Cost and Practical Considerations Audit burden: Multiple certifications mean multiple annual audits—manageable but requires organized documentation. Premium positioning: Triple-certified products command higher trust and justify premium pricing in the activewear market. Retail access: Multi-certified products face fewer barriers when entering premium retail channels and international markets.Planning a multi-certified activewear line? Contact our team to discuss certification pathways and production feasibility.

Yes. Bloomto offers sustainable fabric options that can be matched to your brand’s environmental goals. We work with qualified mills to provide certified materials, and we recommend the best option based on performance needs and budget.Available Sustainable MaterialsRecycled NylonMade from pre- and post-consumer waste. Offers the same stretch, recovery, and softness as virgin nylon. Compatible with leggings, bras, and bodysuits.Recycled PolyesterDerived from PET bottles and textile waste. Moisture-wicking and quick-drying ideal for tanks, tees, and performance tops.Organic CottonCultivated without synthetic pesticides or fertilizers. Great for relaxed-fit styles, hoodies, and lifestyle pieces.Bamboo FiberNaturally breathable and antibacterial. Suitable for yoga tops, loungewear, and sensitive-skin applications.Certification SupportDepending on the mill program, we can support certification-ready sourcing including GRS (Global Recycled Standard), GOTS (Global Organic Textile Standard), and OEKO-TEX® Standard 100. Certifications are project-based and should be confirmed during the development phase.Important: Sustainable material MOQs may differ from conventional fabrics. Contact us early to plan your fabric sourcing timeline.Looking for a specific certification? Let us know your requirements and we will source the right fabric for your project.

Yes. Bloomto offers a range of performance fabric options engineered for yoga, hot yoga, and studio-to-street wear. All selections are project-based, so we recommend the best match based on your intended activity, budget, and performance priorities.What Makes Our Fabrics Performance-Grade?4-Way Stretch and RecoveryUnrestricted movement with stable shape retention after repeated wear. Ideal for deep stretches, inversions, and high-intensity transitions.Moisture-Wicking and BreathableAdvanced knit constructions that pull sweat away from the skin and improve airflow essential for hot yoga and cardio-intensive sessions.Soft-Touch HandfeelButtery-soft and cotton-like finishes available for next-to-skin comfort without sacrificing durability or technical performance.Opacity ControlSquat-proof construction options for leggings and tight fits especially recommended for lighter colors where sheerness is a common concern.Fabric Selection GuideFabric TypeBest ForKey AdvantageNylon / Spandex BlendLeggings, bras, bodysuitsSuperior stretch, soft feel, high recoveryPolyester / Spandex BlendTanks, tees, shortsMoisture-wicking, quick-dry, colorfastCotton-Touch PerformanceStudio-to-street setsNatural feel with active performanceNot sure which fabric fits your product? Tell us about your project and we will recommend the right material for your needs.

Not when engineered correctly. Real support comes from structural design and strategic power zones, not from extreme tightness. Bloomto balances compression, breathability, and comfort so support garments remain wearable for long training sessions.How We Balance Support and ComfortStrategic Power ZonesCompression is placed only where it is needed — such as the underband, side panel, and strap base — while the rest of the garment uses lighter, more breathable fabric.Breathable Knit ConstructionWe use moisture-wicking yarns and open-knit structures in non-support zones to improve airflow and reduce heat buildup during high-intensity activity.Soft Inner LiningsWhere the fabric sits directly against the skin, we recommend brushed or microfiber inner layers to reduce friction and improve the overall handfeel.Fit Tuning Through SamplingTension, strap width, band height, and hook-and-eye closures are adjusted during the sample stage so the final fit feels secure without being restrictive.Signs of Good Support Fabric Snug but not painful — you can breathe and move naturally Stays cool during movement — moisture is drawn away, not trapped No digging or chafing — edges and seams lie flat against the skin Consistent feel across sizes — support scales with the garment, not just tightnessWorking on a support garment? Tell us about your requirements and we will help you balance support and comfort.

Yes. Sheerness in lighter colors is a common concern, and Bloomto addresses it through a combination of fabric engineering, structural design, and color development. The goal is to ensure white, cream, pastel, and other light shades stay opaque and confident on-body during movement.How We Prevent SheernessFabric Weight and DensityHigher GSM fabrics and tighter knit structures reduce stretch exposure. We recommend minimum weight thresholds for light shades based on your garment type and compression level.Yarn and Knit SelectionChoosing the right yarn denier and knit construction minimizes yarn spread under tension. Interlock and double-knit structures offer better opacity than single jersey.Lining and Gusset OptionsA built-in lining or power mesh gusset adds an extra layer of coverage in high-stretch zones like the seat and crotch. This is especially recommended for leggings and shorts.Color Development and DyeingPigment loading, fiber selection, and dye bath control all influence how opaque a light shade appears at rest and under stretch. We test opacity during the lab dip stage.Opacity Testing in QCDuring sampling and bulk production, we perform stretch-based opacity checks: garments are stretched to a defined percentage and inspected for yarn separation or light transmission. This is part of our standard QC protocol for light-colored styles.Tip: If opacity is critical for your collection, discuss it during the fabric selection stage. We can recommend pre-tested opaque fabric options for white and pastel shades before sampling begins.Have a light-colored design in mind? Share your requirements and we will recommend the right opacity solution.

We test stretch and recovery using controlled mechanical testing methods that simulate real wearing conditions. The goal is to confirm that the fabric returns to its original dimensions after repeated extension and does not relax or deform over time.Our Testing MethodologyStretch Limit TestFabric is stretched to a defined maximum percentage (e.g., 50–80% of width) to determine the full stretch range. This establishes the baseline for how much elongation the fabric can handle at a given force.Immediate Recovery TestAfter reaching the target stretch, the fabric is released and measured for immediate spring-back. High-performance support fabrics should return to within 3–5% of the original dimension within seconds.Cyclic Fatigue TestFabric is stretched and released repeatedly (typically 10,000–50,000 cycles) to simulate weeks of wear. We measure how much permanent deformation accumulates over the cycle count.Wash and Wear SimulationFabrics are laundered under controlled conditions and re-tested for stretch and recovery. This tells us how much support retention to expect after repeated washing over the product lifecycle.What We Look For Stretch stays within target range at consistent force Immediate recovery 95% after single stretch Minimal creep or bagging after cyclic testing Less than 5% loss in recovery after 10+ wash cyclesDuring sampling: We share stretch and recovery data for selected fabrics so you can compare options before making a final decision. This helps brands validate fabric behavior before bulk production begins.Ready to test fabrics for your support garment? Get in touch with our development team.

The three most important fabric specs for sports bra support are fabric power (modulus), controlled stretch percentage, and recovery rate. These directly determine bounce control, on-body comfort, and whether the support structure stays stable after repeated wear and washing.Key Fabric Specs ExplainedFabric Power (Modulus)Measured at specific elongation points (e.g., 30–50% stretch), modulus indicates how much force is needed to stretch the fabric. Higher modulus = greater resistance = more bounce control. This is critical for high-support designs.Controlled StretchSupport fabrics should stretch just enough for comfort and movement, but not beyond what the structure can control. Typical ideal stretch ranges vary by garment zone and are validated during sampling.Recovery RateAfter stretching to a defined limit (e.g., 50,000 cycles), the fabric should return to near its original dimensions. Poor recovery leads to bagging, band creep, and lost support over time.Elastic Fatigue ResistanceRepeated stretch-and-release cycling simulates real wear. Elastic fatigue testing reveals how much support a fabric will retain after weeks or months of use and washing.How These Specs Affect PerformanceSpecLow ImpactMedium ImpactHigh ImpactModulus @ 30%Sofft, flexibleModerate resistanceFirm, high resistanceStretch %Higher stretchModerate stretchControlled, lower stretchRecovery 90% 93% 95%Need help selecting support fabric for your sports bra? Tell us your target support level and we will recommend the right specs.

Match Fabric to Your Workout Type Choosing the right sportswear fabric depends on three factors: workout intensity, range of motion, and climate. The wrong fabric can cause overheating, chafing, or restricted movement. Here is a practical guide to help you select the best fabric for each type of exercise. Fabric Guide by Workout Type Workout TypeBest FabricKey PropertiesWhy It Works High-Intensity (HIIT, CrossFit)Nylon + Spandex blendCompression, moisture-wicking, anti-odorKeeps muscles stable, wicks sweat fast Endurance (Running, Cycling)Polyester mesh / CoolmaxLightweight, breathable, quick-dryReduces chafing, improves ventilation Low-Impact (Yoga, Pilates)Cotton-spandex / Bamboo blendSoft, 4-way stretch, absorbentMaximum flexibility, gentle on skin Cold Weather (Outdoor winter)Merino wool / Thermal fleeceInsulating, moisture-wicking, softWarmth without bulk, odor resistant Key Fabric Performance Factors Moisture Wicking Fabrics with hydrophilic and hydrophobic layers pull sweat away from skin to keep you dry during intense exercise. Stretch & Recovery Look for 15-30% spandex content for optimal stretch. Good recovery ensures the garment does not sag after extended wear. Breathability Mesh panels, perforated fabrics, or open-knit structures improve airflow in high-heat zones like underarms and back. Need help selecting the right fabric? Consult our fabric experts for personalized recommendations.