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Reduced price! Sea To Summit Nano Ultrasil Dry Sack (20L) View larger

Sea To Summit Ultra-Sil Nano Dry Sack (20L)


New product

Incredibly lightweight yet durable 20L dry bag made from 15D Sil/PU seam-sealed, nylon with a Hypalon roll-top closure. Ideal for packing all your gear (electronics, spare clothing etc.) that absolutely must remain dry.

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This product is no longer in stock

£ 14.00


RRP: £ 20.00

Data sheet

Brand / Manufacturer Sea To Summit
Equipment Category Carry (Packs, Bags, Pouches)
Purpose Multi Purpose
Materials Seam-Sealed Sil-Nylon, Hypalon Roll-Top Closure
Properties Ultralight, Waterproof
Dimensions Oval Base x Height: (26 x 20) x 63cm
Package Weight (approx.) 55 g / 1.94 oz
Item Weight 36 g / 1.27 oz

More info

Sea To Summit Ultra-Sil Nano Dry Sack - 20 Litre

These insanely lightweight dry bags are ideal for packing all the stuff you cannot afford to get wet without adding any significant weight to your pack. Even if you use a pack-liner (as Scramble do) these bags will make sure, in stormy or persistently wet conditions, your important gear remains bone dry. On multi-day / multi-week ventures it's often during packing / unpacking that your gear is most likely to get wet. The Sea To Summit Nano Dry Sacks offer the perfect ultralight protection. 

Using a 15D Sil/PU nylon fabric they call Ultra-Sil® Nano, a lightweight side release buckle and a thinner roll top closure Sea To Summit have created a dry sack that is 30% lighter than their 30D Ultra-Sil® Dry Sacks. Highly recommended when you need to shave off the grams.

As a sleeping bag stuff sack

These dry bags make excellent compression stuff sacks for large sleeping bags like Carinthia's Defence 4. The sleeping bag can be stuffed in foot-end first, then sat on to push out all the air. The seal of this dry bag is water and air tight and this allows the bag to be "vacuum packed", meaning it takes up much less space and takes a malleable form making it easier to shape to the contours of your backpack. With the Defence 4 for example (which has a heavy duty stuff sack), this approach saves your back about 200g and reduces pack size.  

Technical Specification

  • Ultra-Sil® Nano 15D nylon fabric for advanced strength to weight performance
  • Ultra-Sil® Nano has a 1,200mm hydrostatic head
  • Fully seam-sealed for water resistance
  • Reinforced stitching for greater seam strength on all stress points
  • Hypalon roll top closure does not wick moisture
  • Siliconised fabric for easy packing
  • Compact and super lightweight
  • Oval base design for easy packing
  • Designed for ultra light backpacking
  • Dimensions: 26 x 20 x 63cm
  • Capacity: 20L
  • Weight: 36g