The Amphipod Hydraform Ergo-Lite Ultra 12 Oz is a handheld hydration bottle with storage space for whatever you need to help your runs go buttery-smooth. This handheld features a thumb-lock sleeve for hassle-free carriage and an insulated jacket to keep your water the right temperature in hot or cold weather. This convenient handheld is there to hold your hand and keep you hydrated year-round!