Waist – Measure your natural waistline at or just above your belly button.
Hip – Measure around the fullest part of your hips and buttocks.
Inseam – Measure from the crotch seam down to the bottom of the leg opening.
Bust & Underbust
Bust – Measure under your arms and around the fullest part of your chest. Keep the tape level and snug, but not tight.
Underbust – Measure directly under your bust around your ribcage. Keep the tape level and snug, but not tight.
Length & Torso
Length – Measure the distance from the base of your neck down to the hemline.
Shoulder – Measure from shoulder seam to shoulder seam across the back.
Chest – Measure across the chest 1 inch below the armholes.
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Free Returns
Boss Flex is designed for your movement. Featuring Power Mesh for compression comfort and lightweight, sweat-wicking recycled fabric, this sport bra is perfect for athletes.
• Sport bra made with recycled material • Perfect for any athletic activity • Sweat-wicking, sleek and smooth active knit fabric • Maximum comfort. No cups or underwire. • Tag-free care label on back. • No chafing or visible seams at neck and arm openings. • Woven jacquard elastic underband • Classic racerback style with scooped neckline • Reflective logo on front
A sport bra built from recycled fabric, with Power Mesh compression and sweat-wicking performance — for running, HIIT, and any athletic activity where you need support without restriction.
Power Mesh compression panels — targeted support where you need it; breathable and cooling
Recycled poly fabric — lightweight, sweat-wicking, quick-dry active knit
No underwire, no cups — structure comes from compression, not rigid hardware
Anti-chafe internal seam construction — nothing rubs against skin during movement
Sweat-wicking and quick-dry — pulls moisture away from skin during cardio
Breathable mesh panels — ventilation where you run hottest
Supportive without restrictive — medium compression; comfortable for running and daily wear
Matching Flex underwear available — complete active set
Flex Active
88% RECYCLED POLYESTER, 12% ELASTANE
Knit from OEKO-TEX certified recycled polyester and spandex, Flex fabric is for athletes who need freedom of movement. Extremely lightweight and sweat-wicking, it feels silky smooth and friction-free under clothing. With a medium compressive fit, Flex fabric is here to empower your best performance.
Softness
Weight
Stretch
Breathability
Softness
Weight
Stretch
Breathability
88% RECYCLED POLYESTER, 12% ELASTANE
Knit from OEKO-TEX certified recycled polyester and spandex, Flex fabric is for athletes who need freedom of movement. Extremely lightweight and sweat-wicking, it feels silky smooth and friction-free under clothing. With a medium compressive fit, Flex fabric is here to empower your best performance.
Machine wash cold
tumble dry low
OEKO-TEX® Certified
Enhanced support
Signature no-dig waistband
Breathable
OEKO-TEX® Certified
Boss Flex is designed for your movement. Featuring Power Mesh for compression comfort and lightweight, sweat-wicking recycled fabric, this sport bra is perfect for athletes.
• Sport bra made with recycled material
• Perfect for any athletic activity
• Sweat-wicking, sleek and smooth active knit fabric
• Maximum comfort. No cups or underwire
• Tag-free care label on back
• No chafing or visible seams at neck and arm openings
• Woven jacquard elastic underband
• Classic racerback style with scooped neckline
• Reflective logo on front
Boss Flex is designed for your movement. Featuring Power Mesh for compression comfort and lightweight, sweat-wicking recycled fabric, this sport bra is perfect for athletes.
• Sport bra made with recycled material • Perfect for any athletic activity • Sweat-wicking, sleek and smooth active knit fabric • Maximum comfort. No cups or underwire. • Tag-free care label on back. • No chafing or visible seams at neck and arm openings. • Woven jacquard elastic underband • Classic racerback style with scooped neckline • Reflective logo on front
Boss Flex is designed for your movement. Featuring Power Mesh for compression comfort and lightweight, sweat-wicking recycled fabric, this sport bra is perfect for athletes.
• Sport bra made with recycled material • Perfect for any athletic activity • Sweat-wicking, sleek and smooth active knit fabric • Maximum comfort. No cups or underwire. • Tag-free care label on back. • No chafing or visible seams at neck and arm openings. • Woven jacquard elastic underband • Classic racerback style with scooped neckline • Reflective logo on front
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