Bamboo viscose is the ideal material for underwear; it's great for the skin, exceptionally soft and gentle and when combined in our special bamboo and elastane blend it's incredibly stretchy and forgiving. The gently rounded fibres derived from bamboo plants are spun to create a material with a silk like touch that is wonderfully soft and kind to your skin and it's natural, inherent antibacterial and hypoallergenic properties keep you fresher and healthier. Our amazing, ultra-stretch, lightweight Spairs bamboo boxers and fitted trunks feature our signature, soft brushed elasticated waistband and tagless printed care label for total all-day comfort and zero irritation. So find unparalleled comfort and amazing value with our high quality bamboo underwear today. FREE 48hr tracked delivery included with EVERY order!