Fill, drink, pack and repeat with the HydraPak Stow 500ML Flexible Water Bottle with Spill-Proof Nozzle! With durable construction and minimal design for easy packing, the Stow 500ML helps make all your adventures the best they can be. Add the spill-proof nozzle for easy drinking, bail handle for comfortable carrying and attachment, and a weight 80% lighter than most hard bottles, and you've got a winner every time. The minimal design and durable construction allows you to flatten and roll when empty and stow in bail handle. Its flat shape won't roll around during activity and fits flush in bike jerseys or fanny packs. Made for drinking during activity with an easy twist, spill-proof nozzle. Filter Compatible - attaches to most 28mm threaded water filters, use as your durable backcountry squeeze bag. The flexible bail handle allows for comfortable carrying, quick attachment, and filling in a lake or river. Made of ultra-durable, abrasion resistant TPU and RF welded seams for superior durability and elasticity.