Made of cotton spandex Smith's-Stretch technology fabric, this work short gives you the freedom of movement you need; comfort seat gusset for extra movement; triple-tough stitching for extra strength; multiple Velcro closure utility pockets as well as double hammer loops for all your storage needs. Smith's-Stretch Cotton Duck Canvas Fabric Comfort Seat-Gusset for Freedom of Movement Triple-Tough Stitching Velcro Closure Multiple Utility Pockets with Tuck-Away Flaps Key Loop and Double Hammer Loops Smith's Workwear Big Men's Stretch Duck Canvas Cargo Work Short