Xprotex 15 HAMMR Batting Gloves (Pair) AIC (Advanced Impact Composite) is an impact absorbing intelligent material conceived through 30 months of development and testing The impact load generated by a 100mph ball is reduced to the equivalent of being hit by a 40 mph ball with AIC impact absorbing material The Hammr offers both wrist and hand protection for batters Designed to help protect the small bones in the hand and in the wrist most vulnerable to injury from a pitched ball Great feel and great fit plus AIC protection makes this an excellent batting glove Right Hand Throw = Left Hand Glove, Left Hand Throw = Right Hand Glove