One of the keys to running in the heat is staying hydrated, which is where the Nathan QuickSqueeze 12 oz Insulated Handheld shines. The doubled-walled insulated 12 oz flask is ergonomically shaped to fit in your hand, easy to squeeze and will keep your liquids cold. The push-pull blast valve nozzle is easy to use on the move, while the TPU grip keeps the bottle in place no matter how sweaty your hand gets. This water bottle is comfortable for running with its no-grip hand strap, while a phone pocket fits most smartphones. There’s also a small zippered stash pocket for valuables to give you storage on the go. Keep your liquids cold on the run with the Nathan QuickSqueeze 12 oz Insulated Handheld water bottle.