Men’s trunks Men’s underwear made from viscose / spandex Machine wash Imported Chiko Loco underwear style LO/BH/LINES Keep your cool. A distinctive jagged-line pattern on the waistband of these Chiko Loco men's trunks gives them their unpredictable, yet laid-back nature. Clean and contemporary, the Chiko Loco Hart Trunks offer a simple elegance that you'll love to wear, no matter what the occasion. The focus of this designer men's underwear is on the quality of the fabric and the fit: a blend of viscose and spandex produces a fabric that is butter soft against your skin. The Chiko Loco trunks also feature functional fly and plush jacquard waistband.