Champion Double Dry Core Short Mens Polyester shorts closure Fabric Type: Mesh--A knit or woven fabric with small, evenly spaced holes Performance Technology: Champion Double Dry --Double Dry rapidly wicks moisture from the body to the outer layer of fabric where it evaporates, giving you the ultimate in moisture management. Ventilation--Mesh or breathable fabric inserts in high heat zones allow sweat to evaporate and cool air to circulate. Ergonomic Cut/Seaming--Seams and/or design lines of the garment follow the body's curves to allow freedom of movement and prevent skin irritation. Fabric Content: 100% polyester