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Sleeping bag liners are an excellent way to either add warmth to your sleep system, or protect your sleeping bag from your dirty self! Check out our Sea to  Summit liners which are some of the best for backpacking!
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Thermolite Reactor Liner Thermolite Reactor Compact Plus Liner Thermolite Reactor Extreme Liner
Thermolite Reactor Liner
Our Price: $59.95
Sale Price: $38.97
Savings: $20.98
Thermolite Reactor Compact Plus Liner
Our Price: $64.95
Sale Price: $42.22
Savings: $22.73
Thermolite Reactor Extreme Liner
Our Price: $69.95
Sale Price: $45.47
Savings: $24.48
The THERMOLITE® Reactor™ liner is our top seller in the sleeping bag liner range. It's an excellent cold weather option for those who need additional warmth. The hollow core fibers trap heat and offer extraordinary insulating properties. This is a super stretchy, soft, and comfortable choice with a mummy shape, foot box and a drawcord hood. Compact and lighter weight than fleece, this is a best seller for good reason.
The THERMOLITE® Reactor™ Compact sleeping bag liner is the ideal choice for gram counters under 6 feet. It essentially uses a combination of two weights of THERMOLITE® fabric, with the thicker more insulative being strategically placed across the torso and in the feet area. The hollow core fibers work like the fur of a polar bear in that they are incredibly insulating and trap heat effectively. This sleeping bag liner keeps your sleeping bag clean and is super easy to wash. It will bump up the warmth of your sleeping bag temperature rating considerably, depending on your environment and conditions.
The THERMOLITE® Reactor™ Extreme is the warmest backpacking knit sleeping bag liner we offer. The hollow fiber threads work just like the hollow fur of a polar bear in that they trap heat effectively. When the mercury drops you'll appreciate the mummy shape and drawcord hood with mini cord lock attached. Depending on your environment and sleep conditions, this liner can increase your sleeping bag warmth by up to 25F.
Premium Silk Travel Liner Thermolite Reactor Fleece Liner Premium Silk Travel Liner - Mummy
Premium Silk Travel Liner
Our Price: $79.95
Sale Price: $51.97
Savings: $27.98
Thermolite Reactor Fleece Liner
Our Price: $84.95
Sale Price: $55.22
Savings: $29.73
Premium Silk Travel Liner - Mummy
Our Price: $89.95
Sale Price: $58.47
Savings: $31.48
The luxurious feel of premium AA Grade silk, made even more comfortable by stretch panels running along the main seams; all in a super lightweight, easy-care compact package. Have the peace of mind that clean hygienic sheets provide wherever your travels take you, or extend the life of your sleeping bag by reducing the number of times it needs to be washed.
The THERMOLITE® Reactor™ Fleece sleeping bag liner is a luxuriously soft and super warm liner that can bump up the warmth of your sleeping bag considerably. It can also be used as a stand-alone sleeping bag in warmer climates and has a quarter length zipper to control temperature and allows the user to get in and out of easily. The hollow core fibers that make up this fabric trap heat effectively, keeping you toasty warm. If you're looking for a high warmth to weight ratio or a lightweight summer bag, this is an ideal choice.The THERMOLITE® Reactor™ liner is our top seller in the sleeping bag liner range. It's an excellent cold weather option for those who need additional warmth. The hollow core fibers trap heat and offer extraordinary insulating properties. This is a super stretchy, soft, and comfortable choice with a mummy shape, foot box and a drawcord hood. Compact and lighter weight than fleece, this is a best seller for good reason.
The luxurious feel of premium AA Grade silk, made even more comfortable by stretch panels running along the main seams; all in a super lightweight, easy-care compact package. Have the peace of mind that clean hygienic sheets provide wherever your travels take you, or extend the life of your sleeping bag by reducing the number of times it needs to be washed.