The Patagonia Dirt Roamer 20L Pack is built for big rides or bad weather. Made with rugged recycled nylon that's coated with polyurethane for added abrasion-resistance and weather-resistance, the pack can handle a lifetime of abuse, but it won't take that out on us. Quite the opposite, the monomesh backpanel is breathable and won't absorb water while the Regularator airmesh maximizes breathability through the hip belt and shoulder straps to regulate our temperature as we're tearing up single track or grinding through gravelly forest service roads. The Dirt Roamer is available in two sizes and comes with a 2-liter Hydrapak reservoir to keep us hydrated.