Speedo Men's Fitness Solar 1-Inch Xtra Life Lycra Brief 80% Nylon/20% LYCRA XTRA LIFE fiber Constructed to have 5-10 times more durability than ordinary spandex fabrics Incorporates Exclusive 9 Thread Flatlock Technology for a better fit Brief provides least coverage with greatest freedom of movement Inner drawcord Dries quickly 78% Econyl(Recycled Nylon)/22% Lycra XTRA LIFE fiber Imported Speedos PowerFLEX Eco fabric is made with 78% Econyl, a nylon fabric of 100% regenerated nylon from pre and post consumer waste Retains its shape up to 10X longer than traditional swimwear fabrics Offers 4X the compression of standard fabrics 30% more resistant to fiber breakage in chlorine compared to PowerFLEX Good for the environment, even better for swimmers