Knix catalyst sports bra High impact EUC - worn twice Our most supportive sports bra ever. And one that doesn’t give you the dreaded uni-boob. Keeping you in place while you move, this bra reduces overall breast movement by 76% (During treadmill running; based on University of Portsmouth Research Group in Breast Health study, 2018). - Easy on & off - High impact support - Encapsulated cups to reduce movement - Adjustable back straps - Ventilated cups - Hook & eye back clasps The fabric is designed to feel snug at first but relaxes with wash and wear for a perfect fit. Machine Washable: Wash with like colors. Machine wash cold with mild detergent on delicate, do not bleach, do not dry clean, do not iron, lay flat to dry. Body: 59% Nylon, 41% Spandex Lining: 86% Nylon, 14% Spandex