![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://i.redd.it/o3xfz9p1nja81.jpg)
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: 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/I/81K1HPK6MeL._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/I/81hJYZcIRaL._AC_UF350,350_QL80_.jpg)