Sea to Summit Big River 35L or 65L Dry Bag


The Big River Dry Bags by Sea to Summit are a durable, strong and abrasion resistant option that uses a 420D nylon fabric with a TPU lamination. These are ideal for storing your gear in while strapping it to the front of your packraft.  The webbing along the sides allows for easy lash points.  You can line your pack with it or put it over your pack (depending on the size of your pack).  It also makes a great option as a bear bag that you can store your food in and hoist into the air during overnight trips in bear country.   The 65L size should be able to hold most of your gear for a typical multi-day trip while the 35L size is ideal for protecting the absolute essentials (food and sleep kit).  A white interior laminate affords greater visibility.   The Field Repair Buckles can be replaced in seconds with just a Philips screwdriver.  Please note, roll top closures do not keep the interior dry when fully submerged.

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  • TPU laminated fabric with 10,000 mm hydrostatic head
  • Super strong and abrasion-resistant 420D Nylon fabric
  • Waterproof, double-stitched, reinforced, tape sealed seams
  • Hypalon lash loops for secure attachment or stacking
  • Waterproof hypalon roll-top closure does not wick moisture
  • Oval base resists rolling – stays where you put it
  • Features the patent-pending Field Repair Buckle with stainless steel pins
  • Features the patent-pending 3/4in | 20mm Field Repair Buckle with stainless steel pins


  • It’ll survive rough and tumble just fine, but avoid sharp or abrasive rocks and knife blades


  • 10,000mm hydrostatic head – more than sufficient water protection for paddle use (avoid full submersion)

65Liter Dry Bag

Dimensions: 15 x 10 x 33 in / 38 x 25 x 85 cm

Gear Capacity (in Liters): 65L

Weight: 10.3 oz / 293g

35Liter Dry Bag

Dimensions: 13 x 8 x 28 in / 33 x 21 x 70 cm

Gear Capacity (in Liters): 35L

Weight: 8.4 oz / 239g

Additional information


65L Royal Blue, 65L Orange, 35L Royal Blue, 35L Orange

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