Sea to Summit Reactor Insulated Sleeping Bag Liner

Sea to Summit's Reactor series of insulated sleeping bag liners are designed to extend the comfort range and improve the personal hygiene of any sleeping bag. Constructed with Thermolite hollow-core fibers, similar to the fur of a polar bear, these liners efficiently trap heat while providing a luxuriously soft and comfortable feel. The stretch-knit fabric ensures optimal comfort and a perfect fit for any sleeping bag.

One of the key features of the Reactor liners is the drawcord footbox, which offers ample ventilation and the versatility of being able to walk around camp while still wearing the liner. The Reactor series is available in three different weights, each offering a unique level of warmth and versatility to enhance your existing sleeping bag.

The Regular Liner uses hollow-core Thermolite Pro fabric with infrared-absorbing ceramic pigments and Thermolite EcoMade fibers. This lightweight fabric can add up to 14°F (8°C) of warmth to your sleep system. The Extreme Liner, on the other hand, features a thicker hollow-core Thermolite Pro fabric, allowing it to add up to 25°F (14°C) of warmth. For the ultimate in warmth, the Fleece Liner employs hollow-core Thermolite Pro fibers in a grid-pattern, adding up to 32°F (18°C) of warmth to your sleep system.

In addition to their insulating properties, the Reactor liners also feature HeiQ Fresh odor control technology, which helps keep the liner fresh even after extended use. The mummy shape design, complete with shoulder zippers and a footbox drawcord, ensures maximum thermal efficiency and temperature regulation.

Sea to Summit stands behind the quality of their Reactor series liners, offering a lifetime guarantee on this product. Whether you're looking to extend the comfort range of your sleeping bag, improve personal hygiene, or simply add an extra layer of warmth, the Reactor series from Sea to Summit has you covered.

product information: