This is the gold standard for Callaway in an ultra-lightweight carry bag. It was engineered to shave every extra ounce out of the product, without sacrificing durability and functionality. It starts with the lightweight, highly durable nylon. The top, which comfortably carries 14 clubs, and bottom were engineered to maintain structural integrity while shaving away unnecessary ounces. The legs are made of carbon fiber which have one of the best strength to weight ratios in the world. The 4 zippered pockets are more than ample storage to carry all that you will need on the course in any conditions.