The Amphipod Hydraform Ergo-Lite Ultra 20 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. The 20 oz model offers enough space for XL phones with room for more! This convenient handheld is there to hold your hand and keep you hydrated year-round!