From the Larapinta Trail to the Alpine National Park, and every exposed ridge and remote bush track in between, hydration systems need to do more than carry water. They need to stay accessible, move efficiently with your body, and perform reliably in Australia's harsh and unpredictable conditions.
The HydraPak PackFlask™ was built specifically for lightweight, front-of-pack hydration. Designed to attach directly to a pack harness, PackFlask™ keeps water visible and within reach while moving, whether you're completing a multi-day Overland Track crossing or pushing deep into the Flinders Ranges. The soft flask design collapses as you drink to reduce sloshing and bulk, helping hikers and fastpackers move more efficiently over long distances.
What is the HydraPak PackFlask™?
PackFlask™ is a chest-mounted hydration flask system designed for hiking, trail running, fastpacking, and multi-day backcountry travel. Unlike traditional reservoirs that rely on hoses and rear storage, PackFlask™ places hydration directly on the front of your pack for faster access and easier water level monitoring, critical when you're covering big distances between reliable water sources in the Australian bush.
Key features include:
- Front-of-pack hydration access
- Lightweight collapsible soft flask design
- Secure daisy chain and hook-and-loop attachment system
- Stretch mesh stabilisation pouch to reduce bounce
- Self-sealing high-flow bite valve
- Integrated dust cover to protect from dust, dirt, and dry-country grime
- Durable abrasion-resistant TPU construction with RF-welded seams
Why Front-of-Pack Hydration Matters on Australian Trails
In Australia, water management isn't just a comfort issue — it can be a safety one. Long carries between water sources, high temperatures, and exposed terrain mean you need to monitor intake closely and access water fast, without stopping or fumbling through your pack.
The PackFlask™ system solves this by moving hydration to the front of the body, where you can drink, refill, and track consumption naturally without breaking your stride. For hikers on the Bibbulmun Track and minimalist adventurers heading into the Kimberley or the high country of the Snowy Mountains, this means a more efficient hydration workflow with less interruption and less bulk.
PackFlask+™: Filter on the Fly in the Australian Backcountry
Remote Australian trails often mean limited, untreated water sources. Creek water in popular hiking areas can carry Giardia and other contaminants, making filtration an essential part of any serious pack kit. For hikers and trail runners wanting to travel lighter and drink from the source, the PackFlask+™ adds integrated filtration to an already capable system, letting you carry less water weight and top up safely from creeks, waterholes, and alpine tarns along the way.
PackFlask+™ filtration specs:
- Removes 99.9999% of bacteria and parasites per NSF 42
- Filters approximately 1,500 litres of water
- Fast flow rate of up to 1 litre per minute
- Includes backflush adapter for restoring filter performance
- 750ml capacity optimised for moving efficiently between natural refill points
Lightweight Hydration Built for Australia's Trails
The HydraPak PackFlask™ collection was engineered for outdoor users who prioritise efficiency, accessibility, and reliability in demanding conditions. By combining lightweight soft flask construction with modular front-of-pack integration, it delivers a streamlined alternative to hard bottles and hydration bladders.
So keep grinding out big miles on the Australian Alps Walking Track, racing through the Blue Mountains, and going fast-and-light in the remote Queensland range. PackFlask™ and PackFlask+™ keep hydration simple, fast, and always within reach.