Have a great workout in this seamless, underwire sports bra, Hook count: 4-hook = Cup sizes F-H. Built for high-impact activities such as running, Encapsulated cups support each breast individually. Breathable, lightweight spacer foam-lined cups for modesty Brand: Freya, Style Number: AA4892. Body: 67% Nylon, 30% Polyester, 3% Elastane.