Add warmth without adding weight

The Sea to Summit Reactor Lightweight Sleeping Bag Liner is designed to boost warmth with minimal bulk for ultralight adventures. Using advanced Thermolite Pro fabric with hollow core fibres and infrared absorbing ceramic pigments, it helps trap body heat and add up to 4 °C of warmth to a sleep system. Stretch knit construction and articulated arm openings allow natural movement throughout the night, while the ergonomic shape and fitted hood support efficient heat retention. Treated with HeiQ Fresh odour control, the liner dries quickly, is machine washable and helps extend the life of a sleeping bag by reducing how often it needs washing.

Features

• Thermolite Pro fabric enhances warmth with minimal pack size
• Hollow core fibres and infrared absorbing pigments help trap body heat
• Stretch knit construction with shaped arm openings allows unrestricted movement
• Ergonomic shape with fitted hood supports warmth without excess bulk
• Stretch fabric fits a wide range of sleeping bag shapes
• HeiQ Fresh odour control helps keep the liner fresher for longer
• Snap connectors integrate easily with Sea to Summit sleeping bags
• Machine washable construction simplifies care and maintenance
• Certified recycled fibres and bluesign approved materials reduce environmental impact

Specifications

• Added Warmth: Up to 4 °C
• Packed Size: 10.0 (W) x 18.0 (H) x 10.0 (D) cm