Why change a good thing? Cameron Brown popularized this design en route to 8 Ironman new Zealand wins. This is our original design that holds four 7oz bottles in a way that minimizes bottle bounce. This belt is a proven winner and has a long history of success at some of the largest events in the world. velcro closure, reflective rear neoprene pocket.Sizes: XS (24"-26"), S (27"-29"), M (30"-32"), L (33"-35"), XL (36"-38"), XXL (39"-41")