iPlay's Mod Ultimate Swim Diaper Block Board Shorts will protect your little on from the sun's harmful rays. The special UV-protective (UPF 50+) fabric is sure to keep your baby safe. The microfiber shell is easy to clean and has a built-in Ultimate Swim Diaper. The longer legs and a wide, comfortable waistband with tie drawstring give these trunks an updated look. Designs coordinate with iPlay Mod Three-Quarter Sleeve Rashguard and bucket sun hats
- Small - 6 months
- Medium - 12 months
- Large - 18 months
- X-Large - 24 months
I just received these today. The page didn't list a weight range and I know swim diapers should be snug, so I chose medium for my boy, whose hips are fairly slender. I should have got a large. These are cute and look to be well-made, but I think it would be helpful to know that the medium weight range is 18-22 lbs., in case anybody is curious.