The Big River Dry Backpack is a roll-top waterproof pack rated to a 10,000 mm hydrostatic head, available in 30L, 50L, and 75L sizes. Construction is 100 percent nylon with a non-PFAS waterproof coating. The 50L weighs 26.8 oz and measures 28.5 by 34.5 by 60.4 cm. Designed for pack-and-paddle use where the contents need to stay dry through whitewater or rain.
$140
1 retailer
At a glance6 specs
colors
Jet Black, Picante
material
100% nylon with non-PFAS coating
weight oz 30l
23.6
weight oz 50l
26.8
weight oz 75l
28.9
dimensions 30l
22 x 29 x 55 cm
Where to buy
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Description
Last reviewed May 03, 2026
Full specifications
10 fields
| colors | Jet Black, Picante |
|---|---|
| material | 100% nylon with non-PFAS coating |
| weight oz 30l | 23.6 |
| weight oz 50l | 26.8 |
| weight oz 75l | 28.9 |
| dimensions 30l | 22 x 29 x 55 cm |
| dimensions 50l | 28.5 x 34.5 x 60.4 cm |
| dimensions 75l | 36.5 x 33 x 67.5 cm |
| capacity options l | 30, 50, 75 |
| waterproof rating mm | 10000 |
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