JINSHI Men's Soft Bamboo Fiber Bikinis Briefs 95 %Bamboo fiber +5% Spandex Seamless technology construction and fabric Gentle machine wash in cold water Constructed with soft, stretchy and breathable bamboo fiber, keeps you comfortable all day Each pair is neatly folded in own little stylish zip locked baggie Pls order it via our own JINSHI size chart, recommend to go One or Two size up