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Sea to Summit Ultra-Sil Drysacks

Weighs 30g (8 Litre size)
Code: OC316V
  • From £8.99
  • (FREE Delivery on orders over £15)
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Sea to Summit Ultra-Sil Dry Sacks are a super light weight dry sack designed for use inside a pack. Made from Siliconised Cordura for maximum durability Ultra-Sil Dry Sacks will keep your pack light and you gear bone dry!

Sea to Summit says:

The Ultra-Sil® Dry Sack is the ideal dry sack for backpackers who need to protect their belongings from wet weather. They are 50% lighter than our Lightweight Drysacks but slightly heavier than our Ultra-Sil Nano Drysacks.

Getting very good reports about the Drybags from customers. These Sea to Summit (STS) Ultrasil Drybags are a similar product to POD Ultralite Drysacs - the difference is that the POD version has a larger buckle fastener and a haul strap across the base this makes the POD sacs a few grams heavier in each size.

- Reviewed by Ultralight Outdoor Gear

  • Ultra-Sil® 30D siliconised high-tenacity Cordura® nylon fabric for exceptional strength
  • Ultra-Sil® fabric has a 2,000mm waterhead
  • Non-wicking roll-top closure with stiffener at the top for an improved seal
  • Fully seam sealed for water resistance
  • Translucent for easy visibility of contents
  • Slippery finish for easy packing
  • Round base in all sizes
  • Use: backpackers, cycling touring, travellers
Item Size Weight
Ultra-Sil Dry Sack - 1 Litre 11 x 24cm 20g / 0.7oz
Ultra-Sil Dry Sack - 2 Litre 13 x 29cm 23g / 0.8oz
Ultra-Sil Dry Sack - 4 Litre 15 x 33cm 26g / 0.9oz
Ultra-Sil Dry Sack - 8 Litre 17 x 46cm 30g / 1.1oz
Ultra-Sil Dry Sack - 13 Litre 22 x 53cm 40g / 1.4oz
Ultra-Sil Dry Sack - 20 Litre 25 x 61cm 50g / 1.8oz
Ultra-Sil Dry Sack - 35 Litre 30 x 70cm 74g / 2.7oz
Showing our 2 Sea to Summit Ultra-Sil Drysacks reviews with an average rating of Very Good. Would you like to write a review?
Review Summary - 4 out of 5 based on 2 ratings.
September 24, 2018 | Christopher Smith
Absolutely waterproof

Really great bags. I packed my clothes in the 13L bag on a two week hike and I noticed each time I unpacked that not only had no water got in, it hadn't even let any air in. Completely impermeable. Can't comment on their durability as I only used the bag for two weeks, but it showed no sign of wear that I can see.

Ultralight Outdoor Gear Limited
August 24, 2018 | TAR
Not a long term solution.

These aren’t expensive, really, but nevertheless they suffer from a flaw that, for me at least, rules them out: the material has no inherent waterproofness but relies on a coating or layer of waterproof chemical impregnation. This means they are waterproof until they aren’t, which we discovered on a recent trip. Our clothes were wet (not soaked, but much more than damp) and the bags were tightly sealed. This was demoralising in an environment in which there was no drying (Wales, middle of nowhere, raining). As for not being expensive, we had 4 of them, so not cheap, either, and at a rough estimate these had seen no more than 6 weeks continuous use over 4 trips. And going back to garden refuse bin bags ( tougher than standard types ) is something we are unwilling to do given they are fit only for the bin themselves after a fortnight in the field.

Ultralight Outdoor Gear Limited
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