Sea to Summit Lightweight Dry Bag
Sea to Summit Lightweight Dry Bag
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The Sea to Summit Lightweight Dry Bag is a waterproof roll-top sack built for backpackers, paddlers, cyclists, and travelers who need reliable gear protection without added bulk. Made from bluesign-approved recycled 70D nylon with a 10,000 mm hydrostatic head and a non-PFAS DWR finish, it keeps contents dry in rain, spray, and wet conditions. Seven sizes (1.5L through 35L) and multiple color options let you match the bag to your packing system.
Waterproof Construction That Earns the Label
The 70D nylon shell carries a 10,000 mm hydrostatic head rating, meaning the fabric itself resists water pressure well beyond what rain or paddle spray produces. Double-stitched and fully taped seams eliminate the stitch holes that let water in on lesser dry bags. The roll-top closure uses Sea to Summit's patented Field Repair Buckle, a 15 mm hypalon non-wicking buckle that seals the top without absorbing moisture. That combination of rated fabric, taped seams, and a non-wicking closure is what separates a genuine dry bag from a water-resistant stuff sack: gear inside stays dry even in sustained wet conditions, not just a brief shower.
White Interior for Low-Light Organization
The interior polyurethane coating is bright white rather than the dark lining found on most dry bags. In a tent vestibule at dusk, the bottom of a kayak hatch, or the depths of a pack, that white interior reflects available light and makes it easier to spot small items (a headlamp, a first-aid kit, a phone) without unpacking everything. The Lightweight Dry Bag is available in several colors (Surf the Web, Sulphur, Spicy Orange, Burnt Olive, Beluga, with availability varying by size), so color-coded packing across multiple bags is straightforward.
Designed to Stay Put and Attach Anywhere
The oval base keeps the bag from rolling away on sloping tent floors, boat decks, or rocky ground, a small detail that matters when you set a bag down on an angle and turn away. A D-ring at the buckle provides a dedicated attachment point for securing the bag to a kayak, bike frame, or pack exterior without loading the closure hardware. Bags produced after 2024 are compatible with the Dry Bag Sling (sold separately). The pliable fabric also handles bear hangs: attach a line to the D-ring rather than the buckle to keep load off the closure hardware.
Features
- Bluesign-approved recycled 70D nylon: non-PFAS DWR finish on a fabric certified for environmental and safety standards
- 10,000 mm hydrostatic head: double-stitched and fully taped seams throughout
- Patented Field Repair Buckle: 15 mm hypalon non-wicking roll-top closure
- White PU interior: improves visibility of gear in low light
- Oval base: prevents rolling on sloped surfaces and improves pack stability
- D-ring attachment point: secures to boats, bikes, kayaks, and packs; compatible with Dry Bag Sling (sold separately, post-2024 bags)
Specifications
| Size | Weight | Height (top rolled) | Base (L × W) |
|---|---|---|---|
| 1.5L | 34 g / 1.2 oz | 19 cm / 7.48 in | 10.7 × 14.1 cm / 4.2 × 5.6 in |
| 3L | 45 g / 1.6 oz | 21.3 cm / 8.39 in | 13.3 × 17 cm / 5.2 × 6.7 in |
| 5L | 50 g / 1.8 oz | 32 cm / 12.6 in | 14 × 16.8 cm / 5.5 × 6.6 in |
| 8L | 67 g / 2.4 oz | 39 cm / 15.35 in | 16.5 × 19.9 cm / 6.5 × 7.8 in |
| 13L | 81 g / 2.9 oz | 45.9 cm / 18.07 in | 20 × 22 cm / 7.9 × 8.7 in |
| 20L | 91 g / 3.2 oz | 47.8 cm / 18.82 in | 23.4 × 27.1 cm / 9.2 × 10.7 in |
| 35L | 115 g / 4.1 oz | 55.6 cm / 21.89 in | 28.8 × 31.5 cm / 11.3 × 12.4 in |
| Specification | Detail |
|---|---|
| Sack material | 100% Nylon (bluesign-approved recycled 70D) |
| Buckle material | 100% POM |
| Interior coating | White polyurethane |
| DWR finish | Non-PFAS C0 |
| Hydrostatic head | 10,000 mm |
| Closure | Roll-top with 15 mm Field Repair Buckle |
| Base shape | Oval |
| Best use | Backpacking and paddle sports |
Who This Is For and Isn't
The Sea to Summit Lightweight Dry Bag suits backpackers, kayakers, canoeists, cyclists, ski tourers, and travelers who need a lightweight, waterproof organizational sack for clothing, electronics, food, or smellables. The seven-size range (1.5L–35L) and multiple colors make it practical for color-coded packing systems across a single trip.
The Lightweight Dry Bag is not rated for full submersion. Water can seep through the roll-top closure of any dry bag under sustained underwater pressure, so it should not be used as a submersion case. The Dry Bag Sling accessory is sold separately and is compatible only with bags produced after 2024. Not all colors are available in every size.
Common Questions
Is the Sea to Summit Lightweight Dry Bag waterproof?
The body of the Sea to Summit Lightweight Dry Bag is waterproof, rated to a 10,000 mm hydrostatic head with double-stitched and fully taped seams. Full submersion is not recommended, however, because water can seep through the roll-top closure of any dry bag under sustained underwater pressure.
Is this dry bag suitable for paddle sports?
The Sea to Summit Lightweight Dry Bag is built for paddle sports. The 70D nylon construction handles the wet conditions of kayaking, canoeing, and rafting. Exercise caution around sharp objects or abrasive surfaces, which can damage the fabric.
Can this dry bag be used for a bear hang?
The Sea to Summit Lightweight Dry Bag works for bear hangs. Attach the hang line to the D-ring rather than the buckle to keep load off the closure hardware. The pliable fabric keeps food and smellables weather-protected overnight.
Is the Dry Bag Sling compatible with this bag?
Sea to Summit Lightweight Dry Bags produced after 2024 are compatible with the Dry Bag Sling. The Dry Bag Sling is sold separately. If compatibility matters for your setup, confirm the production date of the specific bag before purchasing the sling.
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