Exped Silk and Thermolite liners (seconds) 22% retail

[Monte Masterson]

Colder temps ahead. If you need a bag liner you won’t find a better bargain.

The silk liner comes in rectangular (5.6 oz) and mummy (4.9 oz) and is supposed to add 8.5* F warmth. I’ve read that silk provides one of the highest warmth to weight ratios of any material (next to down). https://www.expedusa.com/collections/sample-sale/products/sleepwell-silk-liner

Exped claims the polyester Thermolite (10.5 oz) adds 14* F warmth. Mummy style only. https://www.expedusa.com/collections/sample-sale/products/sleepwell-thermolite-liner

Organic cotton liners also available at 33% of retail, but most backpackers would opt for the silk and polyester. https://www.expedusa.com/collections/sample-sale/products/sleepwell-organic-cotton-liner

[MJ H]

I don’t know about hiking, but those look like a great idea for someone who might have to sleep in a hotel where you have doubts about the linens.

[Russ W]

At this price worth experimenting with. Thanks for posting Monte. Does anyone have any insight into the thermal increases claimed?

[JCH]

I’ve never used a silk liner, but do have experience with a Thermolite liner.  I never thought it added much noticeable warmth.  I also found it to be futzy…it is so thin that it gets wound up around your legs if you toss a bit in your bag.

For approx. the same 10 oz that Exped lists, an Alpha Direct top and bottom would add WAY more warmth albeit at a much greater cost.  Honestly, I think a 150 or 200 weight merino base layer would be better than the Thermolite liner.

While the (sale) price might make it attractive, ultimately you get what you pay for.

[Monte Masterson]

I would definitely opt for the silk over the Thermolite. A little better warmth to weight ratio. Also silk is usually a lot more expensive than synthetic.

Some years ago I had the S2S Reactor liner that weighs 8.7 oz and rated at 14* added warmth and the S2S Reactor Extreme (14 oz) that’s supposed to add 25* warmth. I found the claims on both to be WAY overrated, maybe half of what S2S states, if even that. And they’re not cheap either.

I bought a 7 oz silk liner by Thermasilk off Gearswap a couple of year ago and I find it does pretty well as a stand alone summer liner or when paired with my Montbell Breeze Dry-Tec WPB bivy for XUL missions in temps above 58* F.

[John L]

I bought a couple of these and just received them. The quality is nice. I got the rectangular in blue and weighed in at 133g without the stuffsack.

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