It's the latest offering from the Guru stable and I've instantly fallen in love with the very clever design. It's a nice universal size with a decent stay-open pouch with an easy-to-grab toggle on the end. the best bit by far, though, is the adjustable mechanism inside the frame that allows you to vary the length of the elastic. You simply slot a couple of pegs into different spots in the frame to make the elastic longer or shorter. It's such a simple concept and makes you wonder why no one has come up with it before!