Reactor Lightweight Sleeping Bag Liner

Optimized for minimal weight and maximum warmth, the Reactor Lightweight enhances sleep system performance with advanced Thermolite® Pro fabric, which uses infrared-absorbing ceramic pigments and hollow-core fibers to trap body heat. Adding up to 4°C | 7°F of warmth with minimal bulk, it’s ideal for ultralight expeditions. Stretch-knit fabric and articulated arm openings ensure unrestricted mobility. Treated with HeiQ Fresh odor control, it’s quick-drying, machine washable, and helps prolong your sleeping bag’s lifespan by reducing wash frequency.

Product Features

• Lightweight and Insulative: Thermolite® Pro technology with hollow-core fibers and infrared-absorbing pigments enhances warmth with minimal pack size.
• Freedom to Move: Stretch-knit fabric and shaped arm openings allow unrestricted movement, providing natural comfort throughout your sleep.
• Technical Shape and Hood: Ergonomic design with a fitted hood delivers optimal warmth and comfort without extra weight or bulk.

Highlights

• Best Use: Backpacking, Cycle touring, Paddle touring
• Type: Thermal Liner
• Weight: 8.3 oz | 235 g
• Length: 70.1 in | 178 cm
• Packed Size: 3.9 x 7.1 x 3.9 in | 18 x 10 x 10 cm

Tech Specs

• Best Use: Backpacking, Cycle touring, Paddle touring
• Material(s): 100% Post-Consumer Recycled Polyester; Stuff Sack: 100% Polyester