Craft Sportswear Women's Bike Cycling Fitted Athletic Sports Bra: wicking/cooling/baselayer/aerobics/fitness/workout/sport/athletic/underwear/layer/top 95% Polyester, 5% Elastane Imported Ergonomic mesh edging for a comfortable fit Cycling-specific cut and shape for total freedom of movement Body mapped Cool Mesh Superlight fabric for ventilation Body-control fabric keeps the breasts in place Folded lining from in- to outside at bottom for optimal moisture transport