Quadshock Strap - This "backpack" strap carrying system turns almost any Disc Golf bag into a backpack. Worn by many touring pros, the Quadshock distributes the weight evenly across your shoulders and makes throwing those last few holes just a bit easier. Attaches with D-ring clips to almost any bag through it's existing strap rings. You can even leave your existing strap on the bag if you like - works well with or without. A must have for heavier bags.