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Sea to Summit Ultra-Sil Compression Sack - Moosejaw
 
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Sea to Summit Ultra-Sil Compression Sack
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Sea to Summit Ultra-Sil Compression Sack

Sea to Summit Ultra-Sil Compression Sack is rated 4.8 out of 5 by 40.
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4.8 Star Rating
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The Sea To Summit Ultra-Sil Compression Sack is a compressible sack for organizing and shrinking the gear inside your pack. Haul your sleeping bag, extra clothing and more with an ultralight, compressible sack that takes up less space. Pack it up, roll the top and clip it shut, then utilize the 4 compression straps on the exterior to bring down the size. Available in five different sizes plus a few different colors.

Product Description
Item No.   10046648

The Sea To Summit Ultra-Sil Compression Sack is a compressible sack for organizing and shrinking the gear inside your pack. Haul your sleeping bag, extra clothing and more with an ultralight, compressible sack that takes up less space. Pack it up, roll the top and clip it shut, then utilize the 4 compression straps on the exterior to bring down the size. Available in five different sizes plus a few different colors.

FEATURES of the Sea to Summit Ultra-Sil Compression Sack

  • 4 straps for even compression
  • Extra long straps so these sacks can really be filled to capacity
  • Bar tack reinforced stress points
  • Pull handle on the bottom
  • Slippery finish for easy packing

Product Specifications
Features: Compression Straps
Best Use: Backpacking, Mountaineering and Alpine, Camping
Dimensions (Extra Small): 6 x 14 in.
Dimensions (Small): 7 x 16 in.
Dimensions (Medium): 8 x 18 in.
Dimensions (Large): 9 x 20 in.
Dimensions (Extra Large): 10.5 x 23 in.
Weight (Extra Small): 2 oz
Weight (Small): 2.3 oz
Weight (Medium): 2.7 oz
Weight (Large): 3.3 oz
Weight (Extra Large): 3.8 oz
Disclaimer: We only ship this brand to US Addresses.
Stuff / Compression Sack Closure: Drawcord
Product Reviews
Rated 4 out of 5 by from So far, so good. I bought it to stuff a Kelty Cosmic Down sleeping bag into. Ive stuffed it in there 4 or 5 times and it hasn't exploded yet. The bag on the left is my girlfriend's Cosmic Down in its included stuff sack. The bag on the right is my Long Cosmic Down in the Sea to Summit sack. It saves enough room for 2 or 3 more liters of water.
Date published: 2022-02-24
Rated 5 out of 5 by from INCREDIBLE!! I bought this to compress a North Face double sleeping bag, it’s perfect and did just that! The compression sack is nice and light yet surprisingly strong!
Date published: 2022-01-17
Rated 5 out of 5 by from Great compression sack for travel Helped with packing for traveling overseas, compressed cloths to use a smaller backpack. Good quality while also being lightweight. Optional different colors.
Date published: 2021-09-21
Rated 5 out of 5 by from Yes ! I purchased serval of these and I was impressed by the durability it had being as lightweight as it is , little bit pricey but you get what you pay for . I will definitely purchase more of these in the future
Date published: 2021-05-29
Rated 5 out of 5 by from fits my 20F bag perfectly! My sleeping bag packed up huuuge in the sack it came in... this does the trick! Stoked to have this to free up space in my backpack when we get to go outside again
Date published: 2020-06-12
Rated 5 out of 5 by from Great for ultralight ultra compact adventures Strong and easy to use, been on six trips already, ultra sil is an bulk reducing lightweight solution indeed. Has the the strength to compress firmly, as with all ultralight gear there is a trade off in durability so treat it good. Many miles :)
Date published: 2020-05-25
Rated 5 out of 5 by from Well constructed and what I expected Great for storing clothing, sleeping bags/quilts etc at home. I'm undecided that I will bring it along on my thru-hike only because there might be empty space in my pack created instead of just cramping my quilt down into the bottom of my pack.
Date published: 2018-04-28
Rated 5 out of 5 by from Just what I needed,,,, Bought two of these in xs to use for my 850 fill down puffy and puffy pants. Just what I needed to compress those two items in a very full winter pack. Can also use for my 40 or 30 degree women’s mummy bags.
Date published: 2018-02-12
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I see you have answered the sizes' capacities in liters, but could you give us the dimensions (in inches) of each size as well?

Asked by: msteppe91
Hey there, Thanks for reaching out to us! As requested, here are the dimensions, in inches... 3XS- 4 in X 9 in 2XS- 5 in X 10 in XS- 6 in x 14 in S- 7 in x 16 in M- 8 in x 18 in L- 9 in x 20 in XL- 10.5 in x 23 in I hope this helped you out!
Answered by: Rocko Gigsby
Date published: 2018-08-20

hi, what size stuff sac for a marmot never summer regular size ? Will the stuff sac fit inside a osprey aura ag 50..Thanks you Patti

Asked by: patti
Hiya Patti, thanks for your question! The Marmot Never Summer sleeping bag includes a stuff sack that measures 8.5 x 18 inches but it can be compressed to about 10.7 liters. You would need either a medium or large size Ultra-Sil Compression Sack. Yes, you should be able to fit the sleeping bag in the Aura AG 50 pack. Hope this helps!
Answered by: Alice in Wanderland
Date published: 2018-04-02

What are the maximum capacities, in liters, of each size?

Asked by: nace
Hey Nace, Here are the capacities in liters for each size: 3XS- 1-2.5 L 2XS- 1.3- 3.3 L XS- 2-6 L S- 3.3-10 L M- 4.5-14 L L- 6.5-20 L XL- 10-30 L
Answered by: Rocko Gigsby
Date published: 2019-01-07

I have a Western Mountaineering Versalite in 6'6" length and 3oz of overstuff. Will this bag fit into the small sea to summit event or sil compression sack?

Asked by: AJ_CO
Hey AJ_CO, thanks for the question! Unfortunately no, a regular length standard stuff bag will need every bit of room in this small option. I would say you need at least the large size option to make this work. Sorry about that, but I hope this helps!
Answered by: Marty Moose
Date published: 2020-05-12

What size of Sea to Summit sil nylon eVent sack do I need for a sleeping bag that rolls to 9" X 12"?

Asked by: Bwana
Hey there, Thanks for the question. With those dimensions, the closest fit you could get would be the size Large, which is 9" x 20", however that might be too long for your bag. Unfortunately all smaller sizes of this are too narrow in the width to fit your bag. Once this is compressed down using the straps the height of the sac might not matter, but if you're looking for an extremely compact compression you may have to try another compression sac with different dimensions.
Answered by: Rocko Gigsby
Date published: 2016-07-03

What size compression sack would i need for the nemo riff 15 down bag?

Asked by: jjtexas
Hey there! Great question! The Nemo Riff 15 Sleeping Bag comes with its own compression sack, but if you're looking for a replacement sack for a bag you already have, we would definitely try the medium in this Ultra-Sil compression sack. I hope this helps!
Answered by: Buttercup
Date published: 2018-10-30

What size sack for a Nemo Forte 20 long sleeping bag?  Thanks

Asked by: John
Thanks for reaching out! We recommend the 14 liter (medium) compression sack to pair with the long version :)
Answered by: Foxxy Cleopatra
Date published: 2021-01-23

Hi Moosejaw, What size compression sack would my son be able to stuff his Mountain Hardwear Bozeman Flame, size Long, sleeping bag into? He is going backpacking for spring break and needs it to be smaller than the stuff sack included.

Asked by: Teri
Hi Teri, good question! The Bozeman Flame Long, should fit in this medium sized stuff sack just fine. If you really give it an effort to pack it down tightly, you may be able to squeeze it into the small. I hope this helps!
Answered by: Marty Moose
Date published: 2019-02-18
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Size Guide