D30 intelligent shock absorption is a patented, shock absorbing material specially engineered with intelligent molecules that flow with you as you move, but lock together on shock to absorb impact energy. Calf leather palm with the D30 on the multi sections on the backhand. Coated in PU. Raw cotton filling inserts for added protection, comfort and durability. Side bar protection and a two piece thumb for ease of movement. A double sided sweat band for comfort. Approx weight is 0.350kg per pair.