![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/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) : Sleeping Bag Liners : 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
![Sea to Summit Thermolite Reactor Extreme Hut Sleeping Bag/Inlett - Sleeping Bags - Camping - Outdoor - All Sea to Summit Thermolite Reactor Extreme Hut Sleeping Bag/Inlett - Sleeping Bags - Camping - Outdoor - All](https://dsev9ziwjq6qk.cloudfront.net/media/catalog/product/cache/5/image/1022x1131/9df78eab33525d08d6e5fb8d27136e95/c/a/cartware_3dpicture_Rvlviu.jpg)
Sea to Summit Thermolite Reactor Extreme Hut Sleeping Bag/Inlett - Sleeping Bags - Camping - Outdoor - All
![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 : 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/81ojj5q-i6L._AC_UF350,350_QL80_.jpg)