U-Boss Swim Aqua Amp
A swim top that provides medium compression, anti-chafe construction, and athletic support — built to perform in the water the same way the Boss Flex performs in the gym.
- Medium compression — holds securely in water without restricting breathing or movement
- Chlorine-resistant recycled fabric — holds shape and color through the full swim season
- Anti-chafe internal seam construction — seams face away from skin; no irritation during lap swimming
- Brushed underband elastic — soft napped finish; doesn't abrade when wet
- Sweat and water-wicking lining — manages moisture in and out of the water
- Athletic silhouette — performance-first design; appropriate for lap swimming and water sports
- Quick-dry — comfortable minutes after leaving the water
- Size-inclusive — XS to 4XL
82% RECYCLED POLYESTER, 18% XTRA LIFE LYCRA 190GSM
Knit from OEKO-TEX® certified recycled polyester and Xtra Life Lycra®, Swim fabric is made for performance in and around the water. Designed with 4-way stretch, chlorine and saltwater resistance, and a UPF 50+ rating, it moves with you while providing protection and durability. Fully lined with silky-soft recycled nylon, Swim fabric delivers a sleek, supportive, and sensory-friendly fit built for endless adventure.
Softness Weight Stretch Breathability Softness Weight Stretch Breathability82% RECYCLED POLYESTER, 18% XTRA LIFE LYCRA 190GSM
Knit from OEKO-TEX® certified recycled polyester and Xtra Life Lycra®, Swim fabric is made for performance in and around the water. Designed with 4-way stretch, chlorine and saltwater resistance, and a UPF 50+ rating, it moves with you while providing protection and durability. Fully lined with silky-soft recycled nylon, Swim fabric delivers a sleek, supportive, and sensory-friendly fit built for endless adventure.
Machine wash cold
tumble dry low
OEKO-TEX® Certified
- True to size
- Designed for a close fit
- See our size guide here
UPF 50+
Fully lined
Xtra Life Lycra®
OEKO-TEX® Certified
Support that makes waves.
Meet the Swim U-Back Boss—our first-ever non-racerback swim top inspired by the iconic Boss silhouette. With a sleek U-back design, longline support, and soft recycled lining, this women’s supportive swim top blends function with modern style. It’s built to hold you in without holding you back.
- Longline swim top with scoop neck and U-back
- Fully lined with silky-soft recycled nylon
- Clean-finished seams and armholes for no-chafe comfort
- Encased underband for stable, pinch-free support
- Front power mesh lining for extra hold
- Opening for pad inserts on side
Support that makes waves.
Meet the Swim U-Back Boss—our first-ever non-racerback swim top inspired by the iconic Boss silhouette. With a sleek U-back design, longline support, and soft recycled lining, this women’s supportive swim top blends function with modern style. It’s built to hold you in without holding you back.
- Longline swim top with scoop neck and U-back
- Fully lined with silky-soft recycled nylon
- Clean-finished seams and armholes for no-chafe comfort
- Encased underband for stable, pinch-free support
- Front power mesh lining for extra hold
- Opening for pad inserts on side
