Sea to Summit Ultra-Sil Drysacks

Weighs 30g (8 Litre size)
Code: OC316V
  • From £8.99
  • (Delivery from £1.49)
+ In Stock Now | Usually dispatched within 24 hours
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 2 of our total 3 reviews, with an average rating of 4 stars. Read all 3 reviews for Sea to Summit Ultra-Sil Drysacks.
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Review Summary - 4 out of 5 based on 3 ratings.
May 27, 2021 | Samuel Hitchen
Awesome lightweight dry bags

I have 5 of these in various sizes and colours, and they all perform well. I use them for storing food, electronics, spare clothes, sleeping mat and pillow and one for my tent. They feel very durable and have kept my kit dry in some pretty crap weather. I once packed my soaked tent back into one and it kept all the moisture in and off of the rest of the contents in my bag. Even if eventually they lose their DWR coating (like other owners have reported) they are still excellent for packing kit down small, and organisation. However, I still strongly recommend using a pack cover to take the brunt of the rain and only ever use these as a last barrier of defense.

Ultralight Outdoor Gear Limited
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