Smart Bottoms' Too Smart Cover fits most babies 10-35 lbs. Our cover features double walled gussets, front and rear interior flaps to hold insert in place and a wipe-able interior. The design and fit of the cover is similar to our 3.1, with 4 rise settings and 10 sets of snaps across the waist. We recommend a package of too smart inserts for each cover purchased. The cover does not need to washed after each change only when soiled or every 24 hours. Material Contents 100% PUL Care Instructions Wash and dry warm. Do not use bleach or fabric softener. Features Wide elastic around the legs decreases chance for red marks and prevents leaks. Manufactured in the USA from domestic and foreign materials. 4-Rise setting allows for cover to grow with child.