Wilson A2000 BB DW5 Superskin 12 inch Baseball Glove Dual post web Super Skin is 2X stronger than cowhide leather, but only 1/2 the weight Pro Stock Leather is prized by professional players for it's rugged durability and unmatched feel Dual Welting provides "exposed edges" of leather along each finger back in order to provide the most durable pocket and long lasting break in Strategic design provides leather where you need it and Super Skin where you don't