Features of the Icebreaker Men's Persist Short Nylon outer face for durability with Merino next to skin Spandex content for stretch and mobility Internal Cool-Lite eyelet lined waistband for faster wicking and comfort Corespun fabric in waistband for enhanced durability Waist tab adjustment on sides Adequate room for use with cycling shorts Front fly with zip closure Gusset for comfort and mobility Zippered hand pockets Icebreaker pip label Fabric Details 60% Nylon, 35% Merino, 5% Spandex Waistband: 51% Merino, 34% Tencel, 15% Nylon