Unobtainium surfacing palms and fingers for a secure grip, plus textured pull for easy donning. Protective knuckle guard. Goat skin leather palm 70% Goat Skin, 10% Elastane, 8% Nylon, 6% Chloroprene Rubber, 3% Rubber, 3% Carbon How to Measure Gloves-Measure the circumference of your hand by wrapping a measuring tape tight around your knuckles. Large XLarge Length 8.10 8.30 Width 4.30 4.50