These easy-care diaper covers are the most leak-proof ones around. They are uniquely designed without any absorbent layers or trim to wick out onto clothes. An air vent in the back of the cover limits any heat build-up. The elastic is sewn internally so it won't cut into your baby. The inside front of the cover features a pocket to tuck the diaper in place and prevent any leakage in the waist. Simply hand or machine wash and hang to dry-it only takes minutes!