![test night, purchased the sea to summit thermolite extreme liner. supposed to get to -19C(-31C w/ wind). also will be testing a new merino top that I purchased to see how toasty test night, purchased the sea to summit thermolite extreme liner. supposed to get to -19C(-31C w/ wind). also will be testing a new merino top that I purchased to see how toasty](https://preview.redd.it/28ogra61nja81.jpg?width=640&crop=smart&auto=webp&s=bdf2ba48cfa052f4b56410368c7f5cf6f91edc77)
test night, purchased the sea to summit thermolite extreme liner. supposed to get to -19C(-31C w/ wind). also will be testing a new merino top that I purchased to see how toasty
![Amazon.com : Reactor Extreme Liner (adds up to 25°F) Regular / Mummy : Sleeping Bag Accessories : Sports & Outdoors Amazon.com : Reactor Extreme Liner (adds up to 25°F) Regular / Mummy : Sleeping Bag Accessories : Sports & Outdoors](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/619t10nFvpL._AC_UF1000,1000_QL80_.jpg)
Amazon.com : Reactor Extreme Liner (adds up to 25°F) Regular / Mummy : Sleeping Bag Accessories : Sports & Outdoors
![What's the comfort limit for the sea to summit insulated liners (not just the extreme) when using as a standalone bag? Anyone done this before? : r/hikinggear What's the comfort limit for the sea to summit insulated liners (not just the extreme) when using as a standalone bag? Anyone done this before? : r/hikinggear](https://preview.redd.it/whats-the-comfort-limit-for-the-sea-to-summit-insulated-v0-axdkj8x6fjdb1.jpg?auto=webp&s=b587d7b0af5ccf90c4391b6a7a9ed6c7e54c901d)
What's the comfort limit for the sea to summit insulated liners (not just the extreme) when using as a standalone bag? Anyone done this before? : r/hikinggear
![Amazon.com: Sea to Summit Reactor Insulated Sleeping Bag Liner, Extreme (83 x 35) : Sea to Summit: Everything Else Amazon.com: Sea to Summit Reactor Insulated Sleeping Bag Liner, Extreme (83 x 35) : Sea to Summit: Everything Else](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/S/aplus-seller-content-images-us-east-1/ATVPDKIKX0DER/A2EG6QEDZDPFVD/95974ce3-53ea-4830-af04-0a9d681e2d86._CR0,0,970,600_PT0_SX970__.jpg)
Amazon.com: Sea to Summit Reactor Insulated Sleeping Bag Liner, Extreme (83 x 35) : Sea to Summit: Everything Else
![Amazon.com: Sea to Summit Reactor Insulated Sleeping Bag Liner, Extreme (83 x 35) : Sea to Summit: Everything Else Amazon.com: Sea to Summit Reactor Insulated Sleeping Bag Liner, Extreme (83 x 35) : Sea to Summit: Everything Else](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/81hJYZcIRaL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: Sea to Summit Reactor Insulated Sleeping Bag Liner, Extreme (83 x 35) : Sea to Summit: Everything Else
![Amazon.com: Sea to Summit Reactor Insulated Sleeping Bag Liner, Extreme (83 x 35) : Sea to Summit: Everything Else Amazon.com: Sea to Summit Reactor Insulated Sleeping Bag Liner, Extreme (83 x 35) : Sea to Summit: Everything Else](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/81K1HPK6MeL._AC_UF1000,1000_QL80_.jpg)