The most comfortable and supportive sports bra you'll own. The Medium Impact Sports Bra is engineered to support you during moderate-intensity workouts. Packed with performance features like strategically placed dig-free straps, mesh ventilation for breathability and 4-way stretch for flexibility, this sports bra brings cloud-level comfort to working out. Dig-free, comfort straps are designed to stay in place and away from the neck. Breathable, mesh back detail has 4-way stretch for support. Chlorine and saltwater resistant—wear from gym to swim. Body: 68% Nylon, 32% Elastane. Cup Lining: 93% Polyester, 7% Elastane. Mesh: 75% Nylon, 25% Elastane.