Want premium underwear at a value? Fruit of the Loom® has you covered! Our 360 stretch cooling channels fabric is specifically engineered for incredible stretch giving you all day comfort. The cooling channels provide ventilation to let air in (and out). We finished them off with a cooling waistband and an ergonomic top-side fly for ease of use and support. We are proud of the hard work we put into the fit of each product, which is why we back every purchase with our Best Fit Guarantee. # Pieces In Set: 4-Pack Features: Moisture Wicking, Multi-Pack, Tag Free, Stretch Fabric, Flat Seams, Cooling Fiber Content: 87% Polyester, 13% Spandex Fabric Description: Jersey Care: Machine Wash, Tumble Dry Material: Polyester Country of Origin: Imported