![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=3024&format=pjpg&auto=webp&s=43e21ca19a4208d6964c5a4770182e0f044cfb18)
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
![THERMOLITE REACTOR EXTREME SLEEPING BAG LINER - Sea to Summit - Alaska Outdoor Gear Rental Reservations THERMOLITE REACTOR EXTREME SLEEPING BAG LINER - Sea to Summit - Alaska Outdoor Gear Rental Reservations](https://img.rezdy.com/PRODUCT_IMAGE/158036/thermolite_reactor_extreme_liner_lg.jpeg)
THERMOLITE REACTOR EXTREME SLEEPING BAG LINER - Sea to Summit - Alaska Outdoor Gear Rental Reservations
![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://images-na.ssl-images-amazon.com/images/I/71lTNobV6sL._AC_UL210_SR210,210_.jpg)