Downtube Waterproof Pack

What Our Gearhead® Experts Are Saying:

"I ran the Downtube Waterproof Pack across a multi-day bikepacking route with significant elevation and variable weather, and it performed exactly as designed. The roll-top closure is the correct solution for that frame position over long mileage, a zipper would have been compromised by day two. Contents stayed dry through everything, and the TPU strap system held firm on my full-suspension setup without any adjustment after day one."

Bikepacking routes do not forgive poor planning, and the gear that earns a spot on a loaded adventure rig needs to justify its presence across days of riding, not just hours. The EVOC Downtube Waterproof Pack is a 1.2L frame bag engineered for the downtube position on long-distance and multi-day rides, where sustained exposure to road spray, mud, and precipitation is a given and the integrity of your flat kit is non-negotiable. The roll-top closure and waterproof PU-coated 100% polyester shell address the specific problem of that frame location: zippers clog and degrade under prolonged debris exposure, and the roll-top eliminates that failure point entirely. The shell is also PFAS-free, a meaningful consideration for gear that travels through remote watersheds and backcountry terrain.

Attachment is handled by two custom TPU straps that mount without bosses, threads, or frame-specific hardware, making the bag compatible with the full range of bikepacking frame geometries, including full-suspension platforms and unconventional tube profiles. Anti-slip backing prevents migration across rough and extended terrain without damaging the frame finish. The 1.2L volume is intentionally sized for a flat kit, a spare tube, plug kit, multitool, and one or two CO2 cartridges, keeping the bag purpose-driven rather than a catch-all. The roll-top compresses around a partial load so nothing shifts or rattles over long miles.

At 70g total, the Downtube Waterproof Pack adds virtually nothing to a bikepacking setup that has already been weighed and considered. For riders building rigs around gravel epics, Route 66 traverses, or multi-day mountain crossings, this is the flat kit solution that stays out of the way until the moment it needs to perform.