Luvs Super Absorbent Leakguards Diapers: * Features NightLock, Luvs" largest absorbency area ever * More absorbent than regular Luvs * Available sizes: Newborn (40 count) for 4-10 lbs., Size 1 (48 count) or up to 14 lbs., Size 2 (40 count) for 12-18 lbs., Size 3 (34 count) for 16-28 lbs., Size 4 (29 count) for 22-37 lbs., Size 5 (25 count) for 27+ lbs., Size 6 (21 count) for 35+ lbs.