KaWaii Baby Happy Leak-Free One Size Cloth Diaper Cover can be used with any type of inserts or with prefold or with contoured or with fitted cloth diapers. Lightweight, leakproof, easy to wash and dry. Fit babies weighing 8–36 pounds, newborn thru potty trained. Featured with Inside Front Flap securely holds diaper insert or cloth diaper in place. Gentle elastic waistband and elastic binding around the leg openings offer a snug and comfortable fit. An extra leg hole flap for additional side leak protection around the leg. Cross-over snaps placement adjust the waist to fit smaller babies. Machine or hand wash in warm water with temperature lower than 95 degrees F or 35 degrees C. Air dry or tumble dry on low heat. Three rows of snaps for simple rise adjustment: Small – snap the first-row buttons into the fourth-row buttons (8–16 lb) Medium – snap the first-row buttons into the third-row buttons (16–22 lb) Large – snap the first-row buttons into the second-row buttons (22–36 lb)