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Sold Out Item # STS1G201M

Sea to Summit Big River Dry Pack

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The Sea to Summit Big River Dry Pack is built to take a beating and keep on showing up for "work." It's completely waterproof, incredibly durable, and incorporates low-profile handles and minimalist shoulder straps that let it go anywhere.


  • The pack's 420D ripstop nylon is waterproof, abrasion-resistant, and puncture-resistant
  • Triple-coated base increases waterproof protection and adds even greater abrasion-resistance
  • Hypalon non-wicking roll-top closure to keep everything secure and protected
  • Low-profile grab handles
  • Integrated shoulder harness with an adjustable sternum strap
  • Available in your choice of colors and 50 liter and 75 liters size options

Technical Specs

Best Use
Top loading
Item Dimensions
50L: 23.9" x 13.6" x 11.2"
75L: 26.6" x 14.4" x 13"
Sternum Strap
Yes; Adjustable
50L: 3051 cu in
75L: 4577 cu in
Limited Lifetime
Waterproof Backpack
420D TPU-Laminated Nylon
Item Weight
50L: 1 lb 10 oz
75L: 1 lb 13 oz

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