Important:  ARENA Canadian sizing follows the UK (Not US) size on the label.  We have listed the sizes in the UK / Canadian size. 
 
The Men’s FUNDAMENTAL Boxer from arena is designed for casual swimmers and beachgoers. The inner brief keeps everything snug and in place, and the drawstring waist keeps the bathing suit on secure. Side pockets and a velcro closure back pocket give you room to bring a few essentials down to the beach with you