Under armour seamless essential sports bra + FREE SHIPPING Zappos.com Under Armour Women's Seamless Low Long Heather Sports Bra SS21 Under Armour Seamless Low Long Bra Under Armour Women's Seamless Long Low Impact Bra Academy. So comfortable you can sleep in it, lounge in it, or work out in it. Experience unmatched comfort with the UNDER ARMOUR Seamless Low Long Sports Bra. Designed for women who love low impact activities like yoga and hiking, this bra features a longer cut and adjustable skinny straps in a cross back design. It is composed of 93% Nylon and 7% Elastane, creating a soft knit with engineered ventilation. The ultra tight compression fit is enhanced with soft, removable cups and a wide jacquard wordmark band for superior stretch and comfort. Perfectly solid in color 100 White, this seamless sports bra wicks moisture efficiently and offers 4 way stretch for unrestricted movement.