These racerback sports bras are double layered to provide medium level support for medium-impact activities. They feature an adjustable keyhole back detail and mesh knit fabric to keep you cool during activities. Available in assorted colors. Small/Medium fits bras size 32A to 36C; Large/X-Large fits bra size 36C to 40D. Made of 90% Nylon and 10% Spandex. Machine wash in lingerie laundry bag, line dry. For better results, hand wash.