Double thick material for compression support and comfort. Whether you're sporting them under your Gi pants or under your shorts, or if you're flamboyant enough to wear the tights alone, these will keep you warm and safer from mat germs. Further, your knees are protected from mat burns and scuffs from double-legs and knee-cut passes. Worn by Japanese submission wizard Shinya Aoki, these are not for the faint of heart!