Freedivers use specialized wetsuits known as open cell wetsuits. These wetsuits adhere to the skin more closely, making them significantly warmer, but require lubrication to put on without ripping the delicate, rubbery inner surface. Shark Snot is a lubicant made specifically for this purpose by freedivers who couldn't find anything that didn't contain irritating soaps, toxic preservatives, or clingy sythetic fragrances. Shark Snot is safe to soak in for hours and absolutely harmless to aquatic environments. It gets its slip from food-grade seaweed extract and is preserved with two edible substances naturally found in the ocean (MSM and colloidal silver.) Great for sensitive skin, easy on expensive suits, and the ocean won't even know we're there.