Top grain Cowhide palm with added Cowhide split palm, thumb, and index finger. Palm, index finger and thumb all sewn with Kevlar thread for strength and heat resistance. Rollover index finger works great for spot welding. A wing thumb for a natural feel. Cowhide split back with elastic for snug fit. Medium. WARNING: This product can expose you to chemicals which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.