My son is Sasquatch,Yeti,BigFoot and the abominable snowman combined. Every year we have a time finding swim gear for him,with me usually making multiple purchases. These trunks are lightweight,not see through and a good fit.

Hes wide in the middle and the elastic goes all the way around. Often we have to go a size up just to fit his midsection but not these. There is a draw string. The length is great, going to his knees. They dry so quick no need to change clothes.
I paired the XL trunks with the Laguna XXL top. The fabric is slightly stiffer but not uncomfortable and it doesnt wrinkle.