Reusable Compostable Fuel Bags for Trail Runners

Kate Dzienis reviews DirtBags by For The Trail, a reusable and home-compostable alternative to single-use gel packets for environmentally conscious trail runners.

Kate Dzienis 03.08.2026

The trail running community has a complicated relationship with the environment. We seek out wild places, we champion conservation, we post about leaving no trace, and then we drop gel wrappers on the trail like confetti.

For The Trail, a UK-based environmental project, isn’t interested in pointing fingers, though. They’re interested in solutions.
Enter: DirtBags.

DirtBags are ultralight, reusable, and home-compostable zip bags designed to replace single-use gel packets, powder sachets, and plastic zip-lock bags, giving runners precise control over their fuelling with a planet-friendlier way to carry their gear.

They come in two sizes. The small bags are designed for gel-sized portions of fuel, while the larger bags suit powders, snacks, or gear organisation inside a vest. They’re waterproof, making them a practical carry system as much as a fuelling station.

The concept is simple: fill them yourself with your nutrition of choice, use them across multiple sessions, wash them, repeat; and when they’ve reached the end of their life, compost them at home rather than send them to the landfill.

What makes For The Trail worth paying attention to is the philosophy behind the product. The organisation is transparent about the fact that DirtBags still require energy, resources, and transport to produce – the goal isn’t perfection. It’s reduction. IN a space that’s rife with greenwashing, that kind of honesty feels refreshing.

DirtBags are made to order only, released in four seasonal drops throughout the year (spring, summer, autumn, and winter), with pre-orders that open via their Kickstarter campaign and website.

For runners who care about what they leave behind on trail, not just how fast they move
through it, DirtBags is worth watching.

VITALS

RRP DirtBags Combo, Training & Large packs $24.00 AUD
RRP DirtBags Group & Club packs $193.00 AUD
shop.forthetrail.com