Ultra-lightweight and guaranteed chafe-free every time. World's lightest full-leg running underwear at under 40 grams Designed by runners - no inner thigh seam and super smooth stitching Highly breathable and wicking to keep you cool and dry Stay comfortable all day long with fitted 3D stretch No chafing or your money back 85gsm Italian blend - 90% polyamide / 10% elastane Performance waistband and 6" inseam for full leg protection "Helps to combat chafing, incredibly light, very breathable and comfortable and ideal for all conditions." - Ultra168 T8's Commandos have been extensively tested in tropical Hong Kong conditions and are guaranteed chafe-free. If you experience any chafing in your Commandos, send T8 a photo and they'll refund you 100%, no questions asked! NOTE: T8 uses Asian sizing, which can be up to half a size smaller than western sizing.