Sea To Summit Waterproof Backpacks of 2025
Best Choice1
Sea to SummitSea to Summit Big River Dry Backpack with Adjustable Harness, 50 Liter, Jet Black
Main highlights- Ultradurable dry bag backpack features adjustable EVA foam pack harness with supportive sternum strap and removable 1.5-inch webbing hip belt
- Reinforced waterproof seams are double-stitched, and tape sealed; secure hypalon roll-top closure with easy-grab handles, and multiple lash points for gear attachment and stacking
- Manufactured from lightweight, waterproof TPU-coated 420D nylon, with a triple-coated base for strength; white laminate interior for better visibility of bag contents
- Low-profile, streamlined shape saves space, and oval base resists rolling; patent-pending field repair buckle can be replaced in seconds
- 50-liter backpack is ideal for kayaking, canoeing, rafting, and motorcycle touring; measures 13.6 x 11.2 x 23.8 inches when closed, and weighs 1.7 pounds; volume is 50 liters (with closure rolled three times)
9.8Exceptional
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Value for Money2
Sea to SummitSea to Summit Ultra-SIL Nano Tarp Poncho 4-in-1 Raincoat, Pack Cover, Groundsheet, and Shelter, Pacific Blue
Main highlights- Side snaps together for rain protection when used as a poncho; has a three-panel peaked hood and a drawcord tail hem
- Measures 57 x 104 inches, packs down to 3 x 5.25 inches in included stuff sack, weighs 8.1 ounces
- Made from waterproof 15D Ultra-Sil Nano fabric; seams are double stitched and tape sealed
- Lightweight, compact poncho can be used as a raincoat, pack cover, groundsheet, or tarp shelter
- Accommodates a large backpack, and can easily convert to a shelter with guy attachment points
9.6Exceptional
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3
Sea to SummitSea to Summit Ultrasil Dry Backpack One Size
Main highlights- Ultra-Sil 30D siliconized Cordura Nylon fabric is waterproof, lightweight and provides an exceptional strength-to-weight ratio
- Reinforced seams are double-stitched and sealed; unique non-wicking double roll-top closure with quick-release buckle
- Includes attached stuff sack and handy aluminum carabiner; weight 3.9-ounces
- Elasticized reflective compression lacing system secures gear and is ideal for bike commuting
- 22-liter capacity day pack weighs less than four ounces and packs down to the size of a water bottle
9.5Excellent
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4
Sea to SummitSea to Summit Ultra-Sil Lightweight Waterproof Backpack Cover, Medium, Royal Blue
Main highlights- Ultralight pack cover for keeping a backpack dry when hiking, backpacking, or traveling
- Packs compactly into included mini stuff sack that’s attached to the cover so it doesn’t get lost
- Medium pack cover fits packs from 50 to 70 liters; packs down to 4.25 x 3 inches and weighs 4 ouncess
- Made of waterproof 30D Ultra-Sil Cordura; seamless construction ensures that cover is waterproof
- Keeper straps pull the pack cover tight across the pack harness
9.4Excellent
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5
Sea to SummitSea to Summit Ultra-Sil Ultralight Day Pack, 20-Liter, HighRise Grey
Main highlights- Versatile enough for travel, grocery runs, cycling or peak bagging
- Two-way zipper closure, ergonomic shoulder straps and webbing loops for attaching a bike light
- Made from durable and water-resistant 30D siliconized Cordura Nylon with reinforced bar-tacks
- Includes attached stuff sack and handy aluminum carabiner; weight 2.5-ounces
- 20-liter capacity day pack weighs less than three ounces and packs down to the size of a tennis ball
9.2Excellent
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6
Sea to Summit12% OffSea to Summit Ultra-Sil Dry Bag Set, Ultralight Waterproof Stuff Sack (3L, 5L, and 8L)
Main highlights- Set of three ultra-lightweight dry bags (3L, 5L, and 8L) for dry storage and organizing when backpacking, bike touring, or travelling
- Set includes three dry bags: 3L (6.7 x 5.5 x 8.1 inches, 0.07 pounds), 5L (6.7 x 5.9 x 12.1 inches, 0.07 pounds), and 8L (7.5 x 6.8 x 14.5 inches, 0.09 pounds)
- Reinforced waterproof seams are double-stitched, and tape sealed, with reinforced stitching at stress points; secure Hypalon roll-top closure; fabric is translucent for visibility of contents
- Manufactured from bluesign-approved 30D Ultra-Sil Cordura ripstop nylon with a slippery finish for easy packing; 2,000mm waterhead (the higher the waterhead rating, the more waterproof the fabric)
- Low-profile, streamlined shape saves space, and oval base resists rolling; patent-pending field repair buckle can be replaced in seconds
9.1Excellent
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7
Sea to SummitSea to Summit Big River Dry Bag, Heavy-Duty Dry Storage, 8 Liter, Jet Black
Main highlights- Ultradurable, abrasion-resistant 8-liter roll-top dry bag is a rugged, dependable dry storage option for kayaking, rafting, canoeing, motorcycle touring, bike packing, and outdoor travel
- Reinforced waterproof seams are double-stitched, and tape sealed; secure hypalon roll-top closure with easy-grab handles, and multiple lash points for gear attachment and stacking
- Manufactured from lightweight, waterproof TPU-coated 420D nylon, with a triple-coated base for strength; white laminate interior for better visibility of bag contents
- Low-profile, streamlined shape saves space, and oval base resists rolling; patent-pending field repair buckle can be replaced in seconds
- 8-liter dry bag measures 7.6 x 6.5 x 14.7 inches when closed, and weighs 0.35 pounds; volume is 8 liters (with closure rolled three times)
8.9Very Good
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8
Sea to SummitSea to Summit Big River Dry Bag, Ultra-Durable Roll-Top Dry Storage, 65 Liter, Royal Blue
Main highlights- Reinforced waterproof seams are double-stitched, and tape sealed; secure hypalon roll-top closure, and hypalon lash loops for gear attachment and stacking
- Manufactured from lightweight, waterproof TPU-coated 420D nylon, with a 10,000mm waterhead (the higher the waterhead rating, the more waterproof the fabric)
- Low-profile, streamlined shape saves space, and oval base resists rolling; patent-pending field repair buckle can be replaced in seconds
- Durable, abrasion-resistant 65-liter roll-top dry bag is a rugged, trustworthy dry storage option for kayaking, rafting, canoeing, motorcycle touring, bike packing, and outdoor travel
- 65-liter dry bag is big enough for carrying outdoor gear; open dimensions: 15 x 10 x 33 inches, weight: 10.3 ounces, volume: 65 liters (with closure rolled three times)
8.8Very Good
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9
Sea to SummitSea to Summit Ultra-SIL Nano Poncho Raincoat and Pack Cover, Pacific Blue
Main highlights- Ultralight, compact poncho is designed as both a raincoat and pack cover for minimalist adventures
- Measures 55 x 46 inches, packs down to 2.5 x 5.25 inches in included stuff sack, weighs 5.2 ounces
- Made from waterproof 15D Ultra-Sil Nano fabric; seams are double stitched and tape sealed
- Long back panel accommodates a backpack when camping, hiking, backpacking, or trekking
- Ergonomic three-panel peaked hood features a wide brim for extra coverage
8.7Very Good
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10
Sea to Summit18% OffSea to Summit Lightweight Dry Bag 3-Piece Set, 8L, 13L, and 20L
Main highlights- Waterproof seams are double stitched and tape sealed; D-ring and base lash loop provide easy
- Set of three lightweight dry bags to keep gear dry and organized when backpacking, hiking, camping, sea kayaking, ski touring, cycling and travelling
- Set includes three dry bags: 8 liter, 13 liter and 20 liter (volume measured with closure rolled three times)
- Manufactured from lightweight PU-coated 70D nylon with a DWR finish; secure Hypalon roll-top closure; interior polyurethane coating is white to improve visibility into bag contents
- Low-profile, streamlined shape saves space, and oval base resists rolling; patent-pending field repair buckle can be replaced in seconds
8.6Very Good
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