The perfect companion to long runs in hot weather, Nathan's Trail Mix Plus Insulated Hydration Belt is an easy and comfortable way to bring along all the essentials for an hour or two on the trail. Its soft and stretchy belt sits comfortably at your hips as you run, while the secure holsters deliver quick, one-handed access to your hydration flasks. The 10oz flasks themselves are insulated, so they'll stay nice and cold even in the warmest weather, and the push-pull blast valve provides high-volume bursts of liquid so you can wet your whistle quickly and efficiently on the trail. The main pouch has a small front stash pocket for gels and snacks, as well as a main compartment that accommodates most large-format smartphones. Two shock cords on either side allow you to lash on smaller accessories and keys, and reflective elements help keep you visible when you get back to the trailhead at sun down and still have to run a mile or two on home.