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5.0 2

Sea to Summit

Ultra-Sil Super-Lightweight Dry Sack

From $11.90

Delivery estimate to:

Pickup from our store

92 Richmond Rd, Keswick SA Mon - Fri: 9am - 5.30pm
Sat: 9am - 5pm
Sun: 12pm - 5pm
17 Doherty St, Brendale QLD Mon - Fri: 9am - 5.30pm
Sat: 9am - 5pm
Sun: 9.30am - 2.30pm
  • Sea to Summit Ultra-Sil dry sacks are super compact and ultra- lightweight
  • Waterproof seams, double stitched and tape seam sealed
  • Soft and flexible with slippery finish for easy packaing
  • Siliconised Cordura® for maximum durability
  • Hypalon® water-tight roll-top closure
  • Polyurethane coated for ultimate waterproofing
  • Made in seven sizes in a range of colours
Snowys Code:
Supplier Code:
In Use Dimensions:
24L x 11W x 11H cm
Packed Dimensions:
22.5L x 4W x 1.5H cm
1 L
30D Siliconised High Tenacity CORDURAâ„¢
2000 mm
0.02 Kg
Limited Lifetime
5.0 2
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1 star
Dec 05 2017


Great item for organizing my pack and keeping everything safe and dry. Have bought many of these dry sacks and will buy more! Love them!

- Melbourne, VIC
Feb 22 2016

Works as advertised

During a recent 4 day 70k hike through the Barrington tops, we encountered 2 days of torrential rain. While our bags didn't hold up so well to the onslaught, our STS Dry Sacks did. Kept everything we needed dry, dry. Provided a welcome end to a wet days hike but ensuring dry sleeping bags, mats, clothing etc etc.

Will definitely buy some more smaller sized sacks for future adventures.

- around

Please help with sizes ..1 answer

Could you please tell me which size dry sacks I would need for a Sea to Summit SI Comfort Lite Mat (Large) and a sleeping bag with packed dimensions 25cmx17cm (850g). Please advise size to fit both and also individually.

- Essendon(9 months ago)

G'day Michelle,

I've tried to do a bit of research for you on the shop floor and here is what I've come up with. The 8L sack will fit the Sea to Summit SI Comfort Lite the best. I personally believe the 4L would just be too tight. I'd also recommend the 8L sack for your sleeping bag although you may have to stuff it in. This is a bit harder to gauge though without seeing the bag itself. Working with all this, a 20L sack would be best suited to fit both. I've worked on the basis that it's always best to go bigger than smaller with dry backs as you can always roll the top a few extra times.

- Snowys(9 months ago)

What size would be best to place spark III sleeping bag in?1 answer

- ARUNDEL, QLD(1 year ago)
Hi Shane, the stuff sack that the Spark III comes with fits 3.7 litres, so the 4L dry sack is probably your best bet.
- Snowys(1 year ago)

are these the only 4 colours available in the utrasil super light dry sacks??1 answer

- GOOSEBERRY HILL, WA(2 years ago)
Currently these are the only four colours Mel. Every now and then they might have an update but there is nothing we know about in the pipeline.
- Snowys(2 years ago)
is initializing