Goodnites Underpants for Boys are a solution for bed wetting. Goodnites Underpants provide trusted protection and control odors. Bedwetting is a common problem: 5-7 million kids in the U.S. suffer from bedwetting, as do over 700,000 children in Canada. This can stem from an underdeveloped bladder, heredity or extremely heavy sleep. Until your child outgrows it, GoodNites Underpants can help. These GoodNites are size Small/Medium and fit boys 38-65 pounds (17-29 kg). 17 pair per package.