Katin Theo Hybrid Trunk Inspired by 1950s surf trunks, the Theo Trunk combines timeless styling with a comfortable modern fit. Constructed from four-way stretch nylon/spandex for all-day comfort in and out of the water. 4-Way Stretch 94% Nylon, 6% Spandex Custom Trim on Side Seams 18" Outseam Lace Up Waist with Custom Katin Drawcord Ultra Sueded Inner Waistband For Comfort Performance Fly Closure Back Patch Pocket with Velcro Closure Woven Katin label on Left Leg Interior Stash Pocket