The Tournament Bag made by Discraft is a step-up from their weekender bag and hold almost double the number of discs depending on the type - 12 to 15.  It has a zippered and velcroed rain fly, water-resistant and a removable liner for the ability to hold the discs better.  Comfortable padded shoulder strap for ease on your body and a pouch for your water bottle when your thirsty.  They use double stitching on stress points inside the bag and has a front putter pouch.

Discraft Tournament Shoulder Bag