HYDRAPAK Stow™ 1L Ultralight Soft Flask

HYDRAPAK Stow™ 1L Ultralight Soft Flask

Designed for adventurers who value performance and packability, the flexible Stow™ 1L features a smart internal baffle for a slim profile and improved grip. Its easy-open flip cap protects the spill-proof nozzle from dirt and debris, while the flexible bail handle offers comfortable carrying and effortless attachment to packs or gear. Lightweight, compact, and ready for any terrain—this is hydration, redefined.

Features:

• Ultra-Packable – Collapsible design flattens and rolls up when empty for compact storage

• Lightweight – Weighs just 57g (2 oz), ideal for fast-paced, minimal-load adventures

• Durable Construction – Built from abrasion-resistant TPU with RF-welded seams for long-term use

• Leakproof Flip Cap – Self-sealing silicone nozzle and flip cap prevent spills and protect from dirt

• Filter Compatible – Compatible with most 28mm threaded water filters like the Sawyer Mini

• Easy to Carry – Flexible bail handle offers a comfortable grip and easy attachment to bags

• Capacity Gauge – External volume markings make it easy to monitor water intake

• Safe & Versatile – BPA- and PVC-free; safe for freezing and for hot liquids up to 60°C (140°F)

Specifications:

• Capacity: 1 L / 32 fl oz

• Weight: 57 g / 2.0 oz

• Dimensions: 230 x 130 mm / 9.0 x 5.1 in

• Filtration Compatibility: 28mm Filter Kit Compatible

• Materials:

  • TPU (Thermoplastic Polyurethane) – bottle body

  • PP (Polypropylene) – cap components

  • Silicone – nozzle