Keeper Racerback Sports Bra

Performance-Engineered Activewear Top
(92% Polyester / 8% Elastane Advanced Blend)

MATERIAL SCIENCE

High-Tensile Polyester Dominance (92%)

▪ Structure: Dimensional stability through 50+ washes
▪ Moisture Management: 0.2s capillary action wicking
▪ Durability: 20,000+ Martindale abrasion cycles

Precision Elastane Integration (8%)

▪ Strategic Stretch: 25% unidirectional elongation
▪ Recovery: <3% permanent deformation
▪ Targeted Zones: Side panels + underarm gussets

DESIGN HIGHLIGHTS

1. Threaded Fabric Technology

▪ Knit: 18-gauge circular weave with brushed interior
▪ Performance: Seamless construction reduces friction by 40%

2. Underwear-Free Design

▪ Hygiene: Polyester-based antimicrobial treatment
▪ Modesty: 85% opacity at full stretch (EN 13758-2)

3. Load-Balanced Shoulder Strap

▪ Engineering: 2.5cm wide strap distributes 0.8kg/cm² pressure
▪ Adjustability: 6-position micro-toggle

TECHNICAL SPECIFICATIONS

Care Protocol:
• 40°C industrial wash approved
• Tumble dry low permitted
• Chlorine-resistant

"Women’s Sports Bra, Shockproof Running & Yoga Top, Adjustable Straps, Racerback Design, Tight-Fitting Activewear"

(Professional-grade documentation meeting OEM specifications)