Speedo Men's Lightweight Quick Drying Swim Trunks Shorts With Mesh Lining Shell: 100% Polyester Longer inseam for greater sun protection Tighter knit fabric for higher level of protection from the sun's harmful rays Lightweight and quick drying. Tie front closure with Velcro fly E-board waistband (elastic back waist and fixed front for adjustability) Full mesh liner with inner key pocket. Side leg pocket with Velcro closure