OUR FULL LINE OF LYCRA SUITS, LYCRA SHIRTS AND RASH GUARDS ARE MADE OF HIGH QUALITY SPANDEX/NYLON MATERIAL TO OFFER THE MAXIMUM STRETCH FOR ALL YOUR NEEDS FROM THE SWIM AT THE BEACH TO A BEAUTIFUL SNORKEL OR DIVING TRIP. MANY PEOPLE WEAR THESE TYPE SUITS FOR EXTRA PROTECTION FROM THE SUN, FIRE CORAL OR SIMPLY EXTRA WARMTH IN COOLER WATERS. WE ALSO FIND THAT MANY SCUBA DIVERS USE THESE LYCRA SUITS AS RASH GUARDS UNDER THEIR WET SUITS AND HAVE REPORTED BACK TO US THAT THESE SUITS HAVE A NYLON SURFACE THAT ALLOWS THE WET SUIT TO SLIDE ON MUCH EASIER.