An innovative, ultra-light, efficient system for fast-and-light day hikes and long treks, the PackFlask™ puts hydration right where you want it. Securely attach it to your pack harness for hands-free use. A stretch mesh pouch secures the bottle and — without the flask — carries a phone, snacks, or map. The bottle is light, designed to ride comfortably, and collapses when empty for easy packing. Its leakproof self-sealing nozzle delivers high-flow hydration, and a dust cover keeps it clean.

Features include:

• Easy Access - No stopping to grab a drink.
• Secure Attachment - Stretch mesh pocket attaches to any daypack with a chest strap.
• High Flow - Bite valve auto-seals after each sip, eliminating annoying drips.
• Trail Friendly - Dust cover keeps bite value grime-free. 
• Large Mouth - Large 42mm opening lets you fill easily with ice and drink mixes.
• Filter Friendly - Compatible with Katadyn BeFree, Salomon XA Filter, Lifestraw Peak Series filters.
• Comfortable Fit - Soft material conforms to most hydration vests, belts, or pack pockets.
• Compressible - Flexible design shrinks as you drink reducing water movement.
• Easy To Clean - Cap and valves come completely apart, top-rack dishwasher safe.
• Proven Performance - Made of ultra-durable, abrasion resistant TPU & RF welded seams for superior durability and elasticity.
• Safe And Reliable - 100% BPA & PVC free, top-rack dishwasher safe.

Capacity: 500ml

Weight: 79g

Bottle dimensions: 220x85mm