8-pack boys 100% cotton, colorful, printed briefsnStrong seams for added strength and durabilityn100% Cotton. Designed in USAnMachine wash cold with like colors. Only non-chlorine bleach when needed. Tumble dry low. Do not ironnTrimfit. Wear Tested® since 1921nBy using a great quality cotton, these briefs will last wash after wash. The elastic is designed to keep them in place without bunching! The soft cotton will be the best part of getting dressed.