![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/I/51+EmLxmDTL._AC_SY1000_.jpg)
Amazon.com : Reactor Extreme Liner (adds up to 25°F) Regular / Mummy : Sleeping Bag Accessories : Sports & Outdoors
![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 Liner (adds up to 14°F) Mummy / Black : Three Season Sleeping Bags : Sports & Outdoors Amazon.com : Reactor Liner (adds up to 14°F) Mummy / Black : Three Season Sleeping Bags : Sports & Outdoors](https://m.media-amazon.com/images/I/51T9rRx9V+L._AC_SY1000_.jpg)