Aqua Y-Back Thong, men's Y-back thong underwear by NDS WEAR ® 95% Cotton, 5% Elastane allows stretch. High quality construction, fabric and soft and very comfortable elastic waist. Good stretch in the elastic waist. Room for shrinkage after washing. Aqua color blue (blue atoll). Sizing Small 28-30, Medium 31-33, Large 34-36, XL 37-39, XXL 40"-43" (add $1 for XXL) Special pricing! Buy more and save $$!!