Nice pattern of sailboats. The diaper on inside is for babies.  Our son is a large 2 years and we ordered the largest size 4.  His legs turned red from the tightness.    We cut out the sewn-in diaper and now use the swim pants with a disposable diaper.   Still, the elastic waste band on on the swim pants is on the tighter side. He won't wear for long.  This item should be resized correctly.  If you have a 1 year old, but a size 4 or else don't buy.

I have a 3 year old and he is 40# couldn't get it past his but!

Very comfortable for my son.  Love the built in diaper.  I hate buying disposable swim diapers and this swimshort works great (even though my son is potty trained) it's comforting to know if he has an accident, it won't leak though!  Such a cute pattern.

These trunks are really cute and seem to be made well (only had them for a short time).  I love the "little man" aspect of having a trunk style suit with the diaper inside!  My 2 and a half year old is on the bigger size so I ordered a size larger and it still was on the tight side.  I do recommend these, just remember to order a larger size.

Waistband is soft and comfortable.  The swim diaper worked great and eliminated the need for expensive disposable swim diapers.  Pattern is cute.  They laundered well and looked new after a year of use.