Built for a low profile, the Hip Monkey’s exterior is deceptively trim. Easily swallowing an extra layer, phone, water bottle, keys, wallet, thermos, etc. It perfectly accommodates up to six folf discs or even a six pack of bottles (yes, bottles)! This thing is cavernous! Spandura stretch panels provide a skintight fit while controlling the load, and the front pocket also has two Spandura expansion panels for increased capacity.