$20 Off Your $100 Purchase! Including Firearms! Use Code: SPRING20

Sea to Summit Reactor Thermolite Sleeping Bag Liner

Item # 726256
Please make sure all selections are complete and a valid quantity is entered and try again.

In Stock

Additional Information:

Prices, promotions, styles and availability may vary by store and online.


  • Made from Thermolite for ultimate warmth

  • Lightweight design for easy packing

  • Mummy shape with a box foot

  • Includes its own stuff sack

Product Summary

Sea to Summit Reactor Thermolite Sleeping Bag Liner

The first liner of its kind, the Reactor Thermolite Mummy Liner from Sea to Summit incorporates Thermolite material from Dupont. Thermolite is a hollow-core fiber that provides extraordinary warmth for its weight and remains extremely breathable. Lighter weight, more compact, and warmer than fleece liners. Adds up to 15°F degrees of warmth to a sleeping bag. Can be used on its own as a warm-weather bag. Thin drawcord with tiny cord-lock around the hood. Mummy shape with a box foot. 100% Polyester.

• Sleeping bag shape: Mummy
• Added warmth: 15° F / 8.3° C
• Stuff sack size: 3" x 5"
• Material: Polyester
• Dimensions: 82" x 35"
• Weight: 8.1 oz. / .23 kg

Sleeping Bag Shape Mummy
Temperature Rating 15°F
Carry Weight 8.1 oz.
Shoulder Girth 35"
Insulation Synthetic
Stuff Sack Size 3 x 5