The Too Smart Cover 2.0 fits most babies 10-35 lbs. The cover features a soft binding around the legs that encases the elastic to provide a snug yet gentle fit. The interior of the cover has a front and back yoke to help hold inserts in place and help prevent leaks. The design and fit of the cover is similar to our 3.1 and Dream Diaper, with four rise settings and 10 sets of waist snaps, it is easy to get a perfect fit. This cover fits perfectly over any absorbent option you choose to pair with it.