The SpiderPro Medium Lens Pouch is made to hold a short zoom lens such as a 24-70mm f/2.8. It is made of durable Cordura and Neoprene and has a water-resistant zipper. The zipper expands the opening so you can use one hand to swap out your lens. The tether attaches to your rear lens cap to keep it close at hand. The top of the pouch can be covered with a dust & rain cover, which can be folded back when not in use. The Medium Lens Pouch is designed to work with the Spider Belts, but is compatible with any belt up to three inches tall. For quick access, it features two side grip handles for sliding it across your belt. The pouch collapses flat for easy transport in your camera bag.