Skip to content

Holiday Exclusive — all favorites 15% off

Gift Guide
Gift Guide

Cart

Your cart is empty

Continue shopping

Trending products

High-Waisted training tights, Model 176 cm / size S,#color_blackHigh-Waisted training tights, Model 176 cm / size S,#color_black
Color +7
High-Waist Training Tights
Sale price95,00€
Gymnation Pile Jacket Unisex, Model Male 179cm size M / Female 167 size XXS #color_gravel-greyGymnation Pile Jacket Unisex, Model 179cm size M #color_gravel-grey
Color
GYMNATION Pile Jacket
Sale price160,00€
Performance sports bra, Model 176 cm / size S#color_coffee-beanPerformance sports bra, Model 176 cm / size S#color_coffee-bean
Color +10
Performance Boost Sports Bra
Sale price58,00€
Men's performance shorts, Model 179 cm / size M#color_coffee-beanMen's performance shorts#color_coffee-bean
Color +4
Men's Performance Shorts
Sale price78,00€
Women's Cropped Short Sleeve Coffee Bean, Model 176 cm / size S#color_coffee-beanWomen's Cropped Short Sleeve Coffee Bean, Model 176 cm / size S#color_coffee-bean
Color +1
Cropped Short Sleeve
Sale price48,00€
women's training longsleeve, Model 167 cm / size S#color_garnet-redwomen's training longsleeve #color_garnet-red
Color +9
Women's Training Long-Sleeve
Sale price59,00€
Men's Longsleeve Model 179 cm / size L#color_garnet-redMen's Longsleeve #color_garnet-red
Color +3
Men's Training Longsleeve
Sale price59,00€

Strappy Performance Sports Bra

Sale price58,00€

Color: wine red
Size: XS
Size chart - Sport Bras

Size Guide - Sport Bras

XS S M L XL
Under bust 68-72 cm 73-77 cm 78-82 cm 83-87 cm 88-92 cm

Please note that the measurements above are body measurements, not garment measurements. If you still are insecure about your size, you can also search your height or weight from customer reviews (e.g. 170cm) or contact our great customer service info@gymnationwear.com. We will help you soonest! 

Gymnation koko-opas urheiluliivit

UNDER BUST - measure under your bust (around) when purchasing a bra

Only 6 units left

Shop now.

Pay later with
✓ Free shipping over 100€
✓ Easy 30-day returns

Medium SupportFunctional TrainingGym

Medium-support sports bra with a snug fit, open-back freedom, and a double-layer front. Breathable, quick-drying fabric keeps you moving comfortably.

Details, Fabric & Fit

The Strappy Performance Boost Sports Bra is a fresh take on our signature best-selling design from 2019. Crafted from Performance Boost™ fabric, it features a beautiful, flattering cut with an open back and narrow straps that give you free, unrestricted movement. The snug fit delivers comfortable medium support without feeling tight, while the high-quality material feels wonderfully cool and soft against the skin.

  • Snug fit, medium support
  • The open back and narrow straps gives room to move
  • Double material in the front, no padding
  • Breathable and quick-drying material
  • Designed in Finland
  • Responsibly made in Lithuania
  • High-quality Oeko-Tex-certified French material: 57% polyamide, 43% elastane
  • Color white is recycled Italian fabric: 65% recycled polyamide, 35% elastane

Fitted, regular sizing. If you are between two sizes according to the size chart, we recommend choosing the larger size.

Holiday Exclusive — 15% off & free shipping in EU

Shipping & Returns

Finland & EU

  • Delivery starting from 3.90€. Free delivery on orders over 100€
  • Return fee is 5€. The first exchange for an item of equal value is free (only in Finland).

Non-EU Countries & International

  • Delivery starting from 9.90€. Free delivery on orders over 150€.
  • International shipments are sent duty unpaid from Finland. The customer is responsible for any customs duties, taxes, or import fees required by the destination country.
  • Return fee is 20€. Returns are handled with UPS using our return label.

You have a 30-day return right, starting from the day you receive your order. For detailed instructions, please read our full Shipping Policy & Return Policy.

strappy sports bra, Model 173 cm / size S#color_wine-red
Strappy Performance Sports Brawine red / XS Sale price58,00€

KEY FEATURES
  • Medium support
  • Open-back design for full mobility
  • Double-layer front for secure coverage
  • Breathable, quick-drying fabric
FIT
Snug Fit Medium Support

A snug fit that stays in place during all movements. If you are between two sizes according to the size chart, we recommend choosing the larger size.

SUSTAINABILITY
  • Designed in Helsinki, Finland
  • Responsibly made in Lithuania
  • Premium Oeko-Tex® fabric from France

Locked-In, Supportive Fit

A sculpted, stay-secure design delivers reliable medium support through dynamic, high-intensity movement—without restricting mobility.

Double-Layered Coverage

A double-layer, high-density front panel ensures elegant opacity and a stable, distraction-free feel during intense movement.

Performance-Ready Fabric

French Performance Boost™ fabric with four-way stretch offers sculpting compression and steady stability—built for confident, powerful training.


MATERIAL

Performance Boost™ — Dynamic Performance

Performance Boost™ delivers powerful, no-compromise performance with squat-proof density, dynamic compression, and a sculpted, purpose-driven fit. Built for athletes, it offers a second-skin feel, secure stability, and four-way stretch that stays locked in—rep after rep.

Performance Boost™ -collection →

Best for

Performance first – ideal for high-intensity workouts, functional training, and heavy lifting. Also perfect for hybrid training, running workouts, or any activity where optimized dynamic compression is essential.

Composition & Origin
  • 57% Polyamide, 43% Elastane
  • Premium Oeko-Tex® certified material
  • Fabric origin: France
Care guide
  • Wash sweaty Performance Boost™ garment as soon as possible after use to prevent sweat buildup.
  • Machine wash at 30–40°C (86–104°F) with similar colours. Use a liquid detergent, preferably one formulated for sportswear.
  • Avoid fabric softener, as it can reduce breathability and stretch. For a natural alternative, use laundry vinegar to freshen your gear.
  • Air-dry your sportswear. Avoid tumble drying, as high heat can damage elastane fibres.
  • If ironing is necessary, use a low-temperature setting and avoid ironing over prints.