![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
![Sea To Summit Thermolite Reactor Extreme Liner Review & Demonstration | Warm Sleeping Bag Liner - YouTube Sea To Summit Thermolite Reactor Extreme Liner Review & Demonstration | Warm Sleeping Bag Liner - YouTube](https://i.ytimg.com/vi/dHU87bBiL74/maxresdefault.jpg)
Sea To Summit Thermolite Reactor Extreme Liner Review & Demonstration | Warm Sleeping Bag Liner - YouTube
![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/28ogra61nja81.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) : Sleeping Bag Liners : Sports & Outdoors Amazon.com : Sea to Summit Reactor Insulated Sleeping Bag Liner, Extreme (83 x 35) : Sleeping Bag Liners : Sports & Outdoors](https://m.media-amazon.com/images/I/8160Ljdc0TL._AC_UF350,350_QL80_.jpg)