Sea to Summit Ultra-Sil Dry Sack
Best ultralight waterproof storage for backpackers needing to organize gear.
These ultralight organizers are the ultimate insurance policy for keeping your gear bone-dry inside a backpack. They trade rugged, submersible durability for featherweight convenience, making them perfect for hikers who count every gram but still need reliable protection against unexpected downpours.
$16.95
Who it's for
- Ultralight backpackers prioritizing minimal pack weight and space
- Outdoor adventurers needing reliable protection from moisture and rain
- Minimalists seeking durable gear that won't weigh them down
Who should skip it
- Hikers carrying sharp gear or navigating rugged, rocky terrain
- Budget-conscious shoppers looking for basic, affordable storage solutions
- Travelers needing to store bulky clothing or larger equipment
Performance breakdown
Weight Efficiency
Featherlight construction ensures your pack weight remains virtually unchanged.
Waterproofing Integrity
Taped seams and roll-top closure create a reliable barrier against moisture.
Material Durability
Nano sil nylon is impressively tough but requires care around sharp objects.
Packing Versatility
Multiple size options make organizing diverse gear sets incredibly simple.
Ease of Closure
Hypalon roll-top seals quickly and intuitively for fast trail transitions.
Specialized Utility
Strictly for internal pack organization, not suitable for submersion or paddlesports.
Key Specs
Material
15D Ultra-Sil Nano nylon
Volume
1L (61cu in), 2L (122cu in), 4L (244cu in), 8L (488cu in), 13L (793cu in), 20L (1220cu in), 35L (2136cu in)
Waterproof
yes, fully taped seams
Closure
Hypalon waterproof roll-top
Dimensions
[1L] 9.4 x 5.1 x 3in, [2L] 11.2 x 5.9 x 3.7in, [4L] 13 x 6.7 x 4.4in, [8L] 18.5 x 7.9 x 5.9in, [13L] 20.5 x 8.9 x 6.5in, [20L] 24.8 x 10.2 x 7.9in, [35L] 27.6 x 12.2 x 9.8in
Claimed Weight
[1 L] 0.5oz, [2 L] 0.6oz, [4 L] 0.7oz, [8 L] 0.8oz, [13 L] 1oz, [20 L] 1.3oz, [35 L] 1.6oz
Manufacturer Warranty
lifetime
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Ask Metto anything about the Sea to Summit Ultra-Sil Dry Sack before you decide.
