Aquamira Geigerrig Pressurized Hydration Pack - Rig Cadence Sprays, Filter Ready, Reversible 50 Oz, Dishwasher Safe Reservoir Comfortable, close-to-body fit. Offerred in small-medium and large-XL. This one is the small-medium size Candence vest. Size. Small-Medium. Adjustable chest strap. Stretchy nylon and breathable mesh. Good fit for bodies 5'2 105 lbs to 5'6 160 lbs. Two small front pockets for cell phone and small snacks. One stretch sfuff pocket in the back for extra shirt, socks or snacks.