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Sea To Summit Premium Stretch Knit Expander Sleeping Bag Liner

$32.95 - $34.95

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  • Navy, Hooded Mummy/82x36in
  • Navy, Long Rect/88x36

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Stretchy warmth.

The Sea to Summit Premium Stretch Knit Expander Sleeping Bag Liner does much more than just add some warmth to your sleeping bag. Its polyester and cotton blend is incredibly stretchy in order to move with you while you sleep, vastly increasing your comfort while you camp. An antimicrobial treatment resists foul odors to keep the liner fresh, and using a liner means you can cut down on the amount you're washing your sleeping bag. And unlike most antimicrobial treatments, this one does not use nano-sized particles so you can machine wash it without any harm to the treatment. Sea to Summit reinforced the seams for excellent longevity.

  • Polyester, cotton stretch knit
  • Antimicrobial treatment
  • Reinforced seams
  • Machine washable
  • Item #STS000L

polyester, cotton
[rectangular] 73 x 36 in, [hooded mummy] 82 x 36 in, [long rectangular] 88 x 36 in, [double rectangular] 73 x 73 in
Claimed Weight
[rectangular] 11 oz, [pillow insert] 13.4 oz, [hooded mummy] 12 oz, [long rectangular] 12.4 oz, [double rectangular] 21.9 oz
Recommended Use
Manufacturer Warranty

Tech Specs

What do you think about this product?


>Rating: 5

So Great

I've used it several times

This Stretch Knit Sleeping Bag Liner is so awesome. It's so comfy and very soft. It feels just like having a soft sheet wrapped around you when inside your sleeping bag. It not only keeps you warmer by adding a couple degree's of warm to your bag, but also allows you to not have to wash you sleeping bag every time you camp. It's so easy to just toss in the wash and have ready to go for your next camping adventure. Lastly, it packs up nice and small to be able to toss in any sort of bag or pack with ease. Would highly recommend to anyone looking for a little extra warmth, and to sleep much more comfortable!

>Rating: 5

Perfect for me!

I've used it once or twice and have initial impressions

I was looking for a sleeping bag liner that could be used for warmer nights in the summer when you really want little more than a sheet for protection. This particular liner is exactly what I was looking for. I was not seeking an ultra light weight, overly compact, high tech, or anything more than a simple liner. If you are seeking any of those features, you may be best with a different style. Overall this one will be perfect for me!

>Rating: 3

Not quite as described

I returned this product before using it

Ordered two these as a extra warmth layer for my son and I. However, neither is labeled as adding warmth, I even went to check Sea to Summit's website after they arrived. The Long/Navy is of poly-cotton expander, but feels of a t-shirt. The regular/eucalyptus is not of the poly-cotton fabric and is 100% cotton and has the feel of a bed sheet. They probably work fine for what they are, but they are not as described as for adding warmth.


Drop down menu lists a traveler with pillow pocket. What is the size of that model? On the left hand side there is a "double rectangular" listed as 36x82. That is the one model NOT in the drop down, can I assume that that is the "traveler with pillow pocket"?


The photo of the package says "100% cotton."...

The photo of the package says "100% cotton." The description says "cotton-poly." Which is it?

I don't know why the packaging says 100% cotton (must be the back side), because S2S lists this puppy as being " made from a premium stretch knit poly-cotton, making it super stretchy and even warmer than a standard cotton weave liner." BC had the right of it, when they listed it as being a poly-cotton blend. Hope this helps.