C-IN2 Men's Zen Slider, Dark Emerald, Small 70% Rayon/30% Cotton Imported Machine Wash There will always be imitations but c-in2 is proud to be the first with innovation. That was certainly the case with the introduction of men's underwear made partially of rayon from bamboo. The underwear is made from fiber yarns to create an ultra-soft hand and nice drape. A trophy case is stitched into the pouch to hold your trophy securely in place. The brief has a 7.5 inch rise and is so comfortable on it feels like a second skin.