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.

Instant Access — Stretch mesh pouch attaches to your pack harness and securely holds the bottle for hands-free hydration.

Light & Tough — Lighter than traditional bottles, and made of durable TPU with RF-welded seams.

Packable — Sized for easy integration with the pouch, the empty PackFlask™ bottle packs small — just flatten, roll, and stash it away.

Easy Drinking — Made for splash-free drinking on the move with a high-flow self-sealing silicone nozzle.

Dust Cover — Protects the nozzle from dust, mud, and dirty hands. Quickly opens and closes with a single-handed flip.

Filter Compatible — Attach it to most 42mm threaded water filters to create a packable squeeze system.

• Highlights: Lifetime Warranty | Easy to Use | Fits Most Packs | Lightweight and Compact. 
• Filtration: 42mm Filter Cap & UltraFlask™ + Filter Cap Compatible.