The Toptier-golf bad is made of newly developed PU synthetic leather. The 9inch top opening, 3-point shoulder strap, and the pressure-resistant bag highlights Toptier’s dedication to the highest caliber of materials and strict quality control. Toptier treats the manufacture of its golf bags as professionally as it does its club heads. Toptier’s dedication to the discriminating golfer can been seen in the bag’s craftsmanship and durability.