JINSHI Men's Bamboo Underwear Sexy Bikini Briefs Low Rise Material:95 % Bamboo Fiber +5% Lycra Spandex Machine wash cold Bamboo Fiber Feature:Breathable,Lightweight,Supportive,Soft,Dries quickly Tagless design eliminates annoying tag itch.Dries quickly if you do sweat in them Waistline:US M(27"-30");US L(31"-34");US XL(35"-38");US XXL(39"-42") We strongly recommend ordering ONE size up what you normally wear