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Sea to Summit Ultra-Sil Nano Dry Sack

Sea to Summit Ultra-Sil Nano Dry Sack
  • Color: Lime Green
  • Color: Orange
$17.95 - $36.95
Please select options


Designed with ultralight backpacking in mind the Ultra-Sil™ Nano™ Dry Sack is made from lightweight 15D siliconized Nylon. With the use of featherweight 15D fabric, these are perfect for use inside your pack to keep gear organized and dry. Using a hypalon roll-top closure that doesn't wick moisture, an oval base for easy packing, these are fully seam sealed for water resistance. Ideal for backpacking, climbing, cycle touring and modular packing where lightweight and low bulk is key.


Keep it inside your pack and away from hard edges and corners


Should be kept in another dry bag or backpack

Best Use

Backpacking, Travel, Bike Packing

What this bag could hold

1 liter: snacks, wallet
2 liter: first aid essentials (avoid hard or sharp objects), gloves/beanie hats, or some snacks

4 liter: shell jacket, gloves/beanie hat, or day-hiking essentials
8 liter: a two-season down sleeping bag or quilt, or dry clothes for backpacking
13 liter: a three-season down sleeping bag, or all your clothes for an ultralight backpacking trip
20 liter: a three-season synthetic sleeping bag plus a Reactor Liner
35 liter: use as a full pack liner for overnight (30+ Liter) ultralight backpacks

  • Ultra-Sil Nano 15D Nylon fabric for high strength to weight performance
  • Ultra-Sil Nano has a 1,200mm hydrostatic head
  • Waterproof hypalon roll-top closure does not wick moisture
  • Waterproof seams - double stitched and tape sealed
  • Reinforced stitching on all stress points
  • Siliconized fabric with a smooth finish for easy packing
  • Compact and super lightweight with an oval base design for easy packing
  • This product is not intended for boating or marine use
  • Intended for use inside a bag or backpack



Part Numbers

Option UPC Store SKU
Lime Green / 2 Litres 9327868027699 STU562124612
Lime Green / 4 Litres 9327868027729 STU559893373
Lime Green / 8 Litres 9327868027750 STU559921353
Lime Green / 13 Litres 9327868027781 STU5658675
Lime Green / 20 Litres 9327868027811 STU567388507
Orange / 2 Litres 9327868027705 STU521726997
Orange / 4 Litres 9327868027736 STU582118639
Orange / 8 Litres 9327868027767 STU52830724
Orange / 13 Litres 9327868027798 STU563837715
Orange / 20 Litres 9327868027828 STU532982357