Two layers of Nomex® (nomex) with suede reinforcement in the palm, fingers, and knuckles provide professional grade protection. Gloves feature outside seams for comfort. Velcro® wrist closure and long gauntlet add extra security. FIA approved. These gloves are only available for a limited time until current supply is exhausted. To find glove size: Measure around the largest part of the hand over the knuckles while making a fist, excluding the thumb.Glove Sizing ChartMeasurement Glove Size7 1/2 - 8 1/2" Small8 1/2 - 9 1/2" Medium9 1/2 - 10 1/2" Large10 1/2 - 11 1/2" X-Large