My son is a little big lately. He is 9 years old and not that active since Covid. These swim trunks are far more comfortable than any other we've tried. He doesn't care about the netting the trunks are wrapped in (he says it's weird), but he likes the lace, which really makes a difference and isn't just for decoration. This was our second pair this summer because he really liked the first pair. I have a different print this time. My 9 year old is about 5ft and weighs 110. I ordered him a 18/20.

My son is 11 years old and the little one is 11 years old. I got the M and it fit a bit, there was a band in the crotch. So I approached L and it fits just the same. I am returning the M and keeping the L as they are almost the same, I might as well keep the L. My son loves her. He tore the tag off the L so I have no choice but to keep it to myself. Maybe I wanted to find a better fit from another brand but he loves it right? The first two waist measurements photos are M. Then I changed M to L.