Meet the Thrubottle 1000: The Ultralight Water Bottle That Changes Everything

Why Your Water Bottle Matters More Than You Think

In the ultralight world, every gram is a decision. Your shelter, your sleep system, your pack — all scrutinized. But water? Most hikers are still carrying a 200g hard-sided bottle when they could be carrying something that weighs almost nothing.

Enter the CNOC Thrubottle 1000.

What Is the Thrubottle 1000?

The Thrubottle 1000 is a one-liter soft flask designed specifically for thru-hikers, ultralight backpackers, and anyone who's serious about cutting base weight without cutting corners. At its core, it's a collapsible water bottle — but CNOC has engineered it to be something far more versatile.

The 28mm wide-mouth neck is the key feature. It's compatible with most standard water filters on the market, including the Sawyer Squeeze, BeFree, and others — meaning you can filter directly through the bottle without adapters, extra hoses, or faff.

Key Features

• Capacity: 1 litre (1000ml)
• Neck size: 28mm — compatible with major filter systems
• Weight: Ultralight — collapses flat when empty
• Material: BPA-free, food-grade TPU
• Durability: Designed for repeated use and rough handling on trail
• Packability: Rolls or folds flat — takes up virtually no space when empty

The Filter Compatibility Advantage

This is where the Thrubottle earns its name. "Thru" as in thru-hiking — water flows through the bottle directly into your filter. No dirty bag, no clean bag, no separate reservoir. Just fill, attach your filter, squeeze, and drink.

For Sawyer Squeeze users especially, this is a game-changer. The Thrubottle's 28mm thread fits perfectly, and the soft sides make squeezing effortless — far easier than the stock Sawyer pouches that come with the filter.

Who Is It For?

The Thrubottle 1000 is built for:

• Thru-hikers on long-distance trails who need a reliable, lightweight water system
• Ultralight backpackers counting every gram
• Trail runners who need a packable hydration option
• Day hikers who want to simplify their kit

How It Compares

Traditional hard-sided 1L bottles weigh 150–200g. The Thrubottle comes in at a fraction of that — and collapses when empty, so it doesn't take up dead space in your pack. Paired with a Sawyer Squeeze or similar filter, you have a complete water treatment system that weighs less than most people's empty bottles.

The Verdict

The CNOC Thrubottle 1000 is one of those rare pieces of gear that solves multiple problems at once: it's your water carrier, your filter interface, and your pack-down solution — all in one. If you're running a Sawyer-based water system and haven't switched to the Thrubottle yet, this is the upgrade you didn't know you needed.

Available now at Halcyon Outdoor.