Sea To Summit Ultra-Sil Pack Cover

Priced: $23.96 - $44.95 Rated:   - 5 stars out of 5 by 11 reviews.
Sea To Summit Ultra-Sil Pack Cover -

The Sea to Summit Pack Cover Sn240 forever ends the debate about whether you can afford the extra weight of a pack cover especially considering the medium size weighs only 4 ounces and packs into a tiny stuff sack.
Made of 30D Diamond Ripstop silicone impregnated Cordura®, this cover's waterproof finish can’t peel or wear off over time.
Siliconized Cordura is about one third the weight of traditional coated nylon. This pack cover uses a “no seam” construction for complete waterproofness, and has a mid-back keeper strap that helps secure it to the pack and keep the sides from catching wind. It comes packaged in its own mini siliconized nylon stuff sack that remains attached to the cover so it can’t get lost. This pack cover comes in four sizes to fit daypacks up to large backpacks.

Fit:

  • Comes in four sizes to fit daypacks up to large backpacks
  • Fits packs 1,800-3,000 cu. in. (30-50 liters)

Fabric:

  • Siliconized Cordura® is about one third the weight of traditional coated nylon
  • Comes packaged in its own mini siliconized nylon stuff sack that remains attached to the cover so it can't get lost
  • Seamless construction offers extra weather protection

Weather and Wind:

  • Made of 30D Diamond Ripstop silicone impregnated Cordura®, so its waterproof finish can't peel or wear off over time
  • Has a mid-back keeper strap that helps secure it to the pack and keep the sides from catching wind
  • This pack cover uses a “no seam” construction for complete waterproofness

Size and Dimensions:

  • Dimensions

Features:

  • Description
  • 3.9 oz
  • 20 x 11 x 8 in
  • 28 x 16 x 10 in
  • Comes with integrated stuff sack for stashing it away once the storm passes
  • X-Small
  • 3.0 oz
  • 4.6 oz
  • 70-95 Liter or 4300-5800 cu in
  • 32 x 17 x 12 in
  • Medium
  • 23 x 13 x 9 in
  • 2.0 oz
Backcountry.com
Dry gear = happy camper.
You have your high-tech rain gear and your waterproof hiking boots. Don't stop there—protect your pack and its contents from summer downpours with the Sea To Summit Ultra-Sil Pack Cover. Weighing in at only 4 ounces (size medium), the cover won't weigh you down as you slog through the mud. In fact, it probably weighs less than the water you'd otherwise take on during the average gully-washer.

Eastern Mountain Sports (EMS)
When a waterproof pack cover is this light (3 ounces), bringing it along is no hassle at all. It even comes with its own stuff sack.
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Average Price History: Price History
Review RatingNumber of Reviews
8
3
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Capacity:X-Small: 15L - 30L / 900 cu. in. - 1800 cu. in. Small: 30L - 50L / 1800 cu. in. - 3000 cu. in. Medium: 50L - 70L / 3000 cu. in.- 4300 cu. in.
Dimensions:X-Small: 20" x 11" x 8" Small: 23" x 13" x 9" Medium 28" x 16" x 10"
Material:30D Diamond Ripstop silicone impregnated Cordura
Pack Size:(XS) 900 - 1800 cu in, (S) 1800 - 3000 cu in, (M) 3000 - 4300 cu in, (L) 4300 - 5800 cu in
Recommended Use:keeping your pack dry
Warranty:lifetime
Weight:(XS) 2 oz, (S) 3 oz, (M) 4 oz, (L) 4.6 oz
Weight [with packaging]:X-Small: 0.15 lb, Small: 0.2 lb, Medium: 0.25 lb
Compare specifications to related products.

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Sea To Summit UltraSil Pack Cover MediumSea To Summit UltraSil Pack Cover Medium$31.46
Sea To Summit UltraSil Pack Cover XSSea To Summit UltraSil Pack Cover XS$22.46
Sea To Summit Ultra-Sil DaypackSea To Summit Ultra-Sil Daypack$29.99 - $54.95
Sea To Summit Backpack CoverSea To Summit Backpack Cover$29.96 - $29.99

Sea To Summit Ultra-Sil Pack Cover Reviews:

Reviews:

Tough, lightweight, easy to stow.

Don't usually write reviews, but I was surprised to see just one review for the Ultra-Sil pack fly. Mine has worked great. Primarily purchased for a day-trip from Yosemite Valley Floor to the top of Half Dome last July. WIth the heavy snow last winter the Mist Trial was like walking hiking through a typhoon. My Med Ultra-Sil (Gray color) slipped nicely over my Kelty 44L Redwing pack. Cinch and strap served to hold the cover on securely. For such a light material (Ripstop) it seems very durable. Jamming against jagged rock on the trailside left rock walls left no marks, and the thing packs so small and weighs so little it never leaves my pack between trips. No problem getting it back in the attached sack between uses for me, BTW. Highly recommended. I'm gettin another for my bigger pack now for a trip to Philmont and up Whitney this Summer with my sons.
Hiker John at SummitHut.com on 02/02/2012

Sure it costs more, just buy it.

I've had every thing in my pack wet - once. Now every thing important goes into waterproof bags/sacs and the pack gets a waterproof cover. The total protection costs a few ounces - a whole lot lighter than the water your gear will pick up when you get rained on. That doesn't even take comfort into consideration.

A couple of years ago I went a long backpack trip with my sons. One of them had this pack cover. It performed every bit as well as the rest of our heavier covers. This thing is tough, and so light, and packs so small. I have been jealous ever since. When I got a smaller pack, I had the excuse to get a new pack cover. Any guess what cover I bought to go with it? Ya. This one. In red - so every body behind me won't get lost. Couldn't be happier.
Old Guy at SunnySports on 01/01/2012

Used this a few times during a month-long hike. Seems to work well (i.e. it repels water), it's easy to put on, and it's light enough that I didn't mind throwing it in my daypack just in case. I could still grab stuff out of my pack while I was walking without the whole thing falling off, and it was secure enough that I could shove my rain jacket between my pack and cover for easy access and storage during on and off rain showers. I subjected it to the abuse of plane-side checking twice (gentler than normal checked luggage, but still can be a bit rough) and we hiked through some rather brush-filled areas...it held up through all of it. I'm not sure I'd test the durability too much if I didn't have to, but it seems to do well, particularly for being so lightweight.

Tricia at Backcountry.com on 06/20/2012

Super-light pack cover

These pack covers, made of siliconized cordura nylon, are spectacularly light. An elastic drawstring that runs around the edge of the cover is useful to tighten the cover so that it fits nicely around the pack. Each cover comes with its own tiny stuff sack.

The extra-small is the standard size to fit most day packs. Packed into its stuff sack it is smaller than my fist and weighs in at a near-negligible 2 oz!

It might take a couple of tries to get the cover back in its miniature stuff sack the first time you try it but with a bit of practice it becomes easier.
Scott at SummitHut.com on 09/09/2009

I read a number of reviews about various pack covers when making the choice. Most indicated problems with tears or poor features. Sea to Summit's received the best consistent reviews so I gave it a try.
So far, it's been great. Kept the water out. Super easy and light to pull out of an outer pocket on my pack and quickly wrap around things. Put it through some brush/branches, etc. and no tears yet!

Brian Reyman at Backcountry.com on 10/03/2012

After trying a few pack covers, this is the one I chose. Here's why:
Pros:
- The stretch draw-cord sold me. Bam! Love how quickly and easily it is installed, and how securely it fits.
- The material sheds water well. Period.
- Super light weight!
- Stuff sack: keeps the pack cover compact when not in use
Cons:
- The trade-off with being light weight is the material will only take so much abuse. Just don't bushwhack too much!

John Ross at Backcountry.com on 06/20/2012

Great Protection

Very pleased with this pack cover - Small size worked like a charm with my Kelty Redwing 44 (2650 ci). It's very lightweight, self-contained (cover attached), and easy to deploy. Seems to be very durable for the weight, and well designed. This cover tamed the mist trail in what is probably one of the wettest season in Yosemite on record!
John the Scout Leader at Eastern Mountain Sports (EMS) on 07/07/2011

Bomb Diggity pack cover

This is a very tough pack cover,and my third one that I own as well.I use them on all of my backpacks,Sea-to-Summit makes wonderful products,I also use their stuff sacks and mesh sacks,perfectly sized and light weight and at a very affordable price for what they are.
Ghost A.T. Ga.-Me. at Eastern Mountain Sports (EMS) on 03/03/2013

Excellent quality

I use my backpack almost every day. I struggled with how to keep my Laptop dry in pouring rain. The waterproof cover takes no time to deploy, and is removed and packed in a minute. The cover keeps my gear completely dry.
Maldo tech at Eastern Mountain Sports (EMS) on 03/03/2010

Works For Me

I've read some reviews that this cover tears easily when packs are (carelessly) dropped. It's water resistant nylon - NOT Kevlar. It works as advertised.
George02176 at Eastern Mountain Sports (EMS) on 08/08/2010