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Sea To Summit

Sea To Summit Big River Dry Bag 35L

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The Big River™ Dry Bags are a durable, strong and abrasion resistant option


The Big River™ Dry Bags are a durable, strong and abrasion resistant option that uses a 420D nylon fabric with a TPU lamination. If your idea of outdoor recreation involves rugged water sports like kayaking, canoeing, rafting, or motorcycle touring, these are the perfect storage bags to keep your gear dry. A white interior laminate affords greater visibility, and hypalon lash loops allow secure stacking or attachment to watercraft, motorcycles and other equipment. The hypalon roll-top closure does not wick water, and the Field Repair Buckles can be replaced in seconds with just a Philips screwdriver.




Best Use

  • Paddle Sports, Motorcycle Touring and Bike Packing



  • 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)



  • 3 liter: a day’s worth of snacks, keys & wallet
  • 5 liter: some extra layers or a couple days' worth of food
  • 8 liter: a two-season sleeping bag
  • 13 liter: clothes for a paddle or overland trip, use as a critter/bear bag for food for 1-2 people
  • 20 liter: a larger tent and footprint, general gear for a paddle trip
  • 35 liter: general outdoor gear (to attach to a motorcycle rack or in a river raft)
  • 65 liter: general paddle or overland gear for a larger group



  • 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





  • Suitable for paddle sports?  Absolutely. The tough 420 D nylon ripstop face fabric is durable and UV resistant. Just apply reasonable caution in sharp and abrasive environments.
  • Waterproof?  The body of the dry sack is more than adequately waterproof (10,000 mm hydrostatic head) – just avoid submersion, as water can seep through the roll-top closure of any dry bag.
  • Easy to transport?  Yes. Rolled up, they take up very little space. In use, the multiple lash points and double ‘D’-Rings offer plenty of attachment points for a carry strap.



BEST USE:Paddle Sports, Overland, Bike Packing
CLOSURE: Hypalon roll-top closure
MATERIAL(S): 420 Denier heavy duty nylon fabric
MEASUREMENT: Length - Measured with roll-top closure open Volume - measured with closure rolled 3 times
REPAIR BUCKLE SIZE: 3/4in | 20mm (2-Pin)
SHAPE: Oval base to resist rolling and an ideal height-to-width ratio for easy packing
WATERPROOF: Yes, in situations where the dry bag will not be submerged
DIMENSIONS 7 x 4 x 11 in / 17 x 11 x 28 cm 7 x 4 x 15 in / 17 x 11 x 39 cm 8 x 5 x 17 in / 21 x 13 x 44 cm 9 x 6 x 20 in / 23 x 15 x 51 cm 11 x 7 x 24 in / 27 x 17 x 60 cm 13 x 8 x 28 in / 33 x 21 x 70 cm 15 x 10 x 33 in / 38 x 25 x 85 cm
GEAR CAPACITY (L) 3L 5L 8L 13L 20L 35L 65L
WEIGHT 2.9 oz / 79g 3.4 oz / 96g 3.7 oz / 106g 4.5 oz / 128g 6.5 oz / 184g 8.4 oz / 239g 10.3 oz / 293g



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