Best for: If you like coverage at the back, these supersoft and stretchy bamboo bikini briefs are your everyday winners. With a comfy elasticated waistband that won't dig in.. . The features: This flattering bikini style has a wide stretchy waistband for a lovely fit. We've made these bamboo briefs with 10% elastane so they're super stretchy and really supportive.. . Our fabric: We've used 90% bamboo viscose because we're all about softness where it matters. This fabric is a fine single jersey knit so it has a delicate feel and yet the 10% elastane means its supportive and very comfy... Oxblood Red. 90% Bamboo Viscose, 10% Elastane. 200gsm fine single jersey knit.