Pro series training gloves feature injection molded foam padding, specifically designed and contoured to the shape of the hand and fist to make the gloves most form fitting and comfortable. Unlike traditional training gloves, the padding in these gloves is made out of a specially formulated chemically balanced molded polyurethane, which is much more shock absorbent. This padding system is much more durable and resistant to wear & tear, giving you the best value for your money. These gloves will retain their shape after years of use.