HydraPak Stow Mountain 350 ml collapsible water bottle, Sutro Green

The HydraPak Stow Mountain 350 ml collapsible water bottle in Sutro Green is a lightweight, flexible hydration solution designed for outdoor activities and everyday carry. Constructed from BPA-free, soft materials, the bottle collapses flat when empty to save space in packs and pockets. It includes a leak-resistant screw cap and a wide mouth that simplifies filling from taps, water filters, or kettles, and makes cleaning straightforward. The compact 350 ml capacity provides a convenient amount of fluid for short hikes, cycling rides, or urban commuting where minimal weight and packability are priorities.

Advantages

The collapsible construction reduces bulk when the bottle is empty, allowing easy storage in small pockets or hydration vest compartments. The BPA-free material is flexible yet durable for repeated folding and unfolding, and the wide mouth and simple cap design support quick refills and easy maintenance. The bottle’s low weight and compact size help reduce carried load while keeping drinking accessible during activity.

Suitable for

• Short hikes and mountain trails where pack space is limited
• Cycling and running for brief hydration stops
• Travel and commuting to save space in bags
• Outdoor events, festivals, and day trips

Key specifications

• Capacity: 350 ml
• Material: flexible, BPA-free polymer
• Design: collapsible/foldable body
• Cap: leak-resistant screw cap with wide mouth opening
• Weight: very lightweight for easy carrying (empty)
• Colour: Sutro Green

How to use

Open the leak-resistant cap and fill the bottle from a tap, filter, or water source. Squeeze slightly to shape as needed; when full the bottle will hold its form for drinking. After use, rinse with warm water and mild detergent if required; the wide mouth facilitates access for cleaning. To save space, empty remaining liquid, dry if possible, then fold or roll the bottle flat and secure it in a pack or pocket.

Usage recommendations

The bottle is intended for cold and room-temperature liquids; avoid storing hot liquids or placing the bottle on direct heat sources. Rinse and air-dry thoroughly between uses to minimise odour and prolong material life. Inspect the cap and seal regularly to ensure leak resistance, and replace the bottle if material degradation or persistent damage appears.