Reactor Midweight Sleeping Bag Liner Regular

About the Sea to Summit Reactor Midweight Liner – Regular

What is the Sea to Summit Reactor Midweight Sleeping Bag Liner Regular good for?

This liner is designed for extending sleeping bag temperature ratings across three-season camping and backcountry expeditions. It’s built for users who need additional thermal performance without carrying extra gear weight. The Reactor Midweight works well in alpine environments, shoulder-season camping, and extended wilderness trips where washing opportunities are limited. This liner handles temperature variations in transitional weather whilst maintaining performance from early autumn through late spring conditions.

How will some of the key features of the Sea to Summit Reactor Midweight Sleeping Bag Liner Regular enhance my experience?

The stretch-knit construction provides complete freedom of movement whilst fitting inside any sleeping bag design. Thermolite Pro insulation uses Far Infrared Technology and hollow-core fibres to trap and reflect body heat, adding up to 6°C of warmth to your sleep system. The liner also features arm openings with snap closures that increase practicality for in-bag movement. Furthermore, the HeiQ Fresh odour control treatment keeps the liner fresh throughout extended use whilst reducing washing frequency.

Why choose the Sea to Summit Reactor Midweight Sleeping Bag Liner Regular?

Sea to Summit applies technical outdoor expertise to create practical sleep system solutions. This liner reduces the need for frequent sleeping bag washing, helping maintain loft and extend usable life. The integration of recycled materials maintains environmental responsibility without compromising thermal performance. The quick-drying properties and easy cleaning ensure the liner handles real-world expedition conditions.

• Stretch Knit Construction: Engineered fabric provides unrestricted movement whilst ensuring universal compatibility with all sleeping bag shapes and sizes
• Thermolite Pro Insulation: Far Infrared Technology and hollow-core fibres trap and reflect body heat for enhanced thermal performance
• Arm Openings with Snap Closures: Integrated openings increase functionality, allowing access whilst maintaining thermal envelope integrity
• HeiQ Fresh Odour Control: Advanced treatment maintains freshness throughout extended use, reducing washing frequency
• Quick-Drying and Easy Maintenance: Fabric properties enable rapid drying and simple cleaning whilst protecting sleeping bag loft
• Recycled Material Integration: Construction includes recycled materials, delivering environmental responsibility alongside technical performance
• Fits Up To: 185cm
• Packed Weight: 350g

The Lowdown

• Materials: Thermolite Pro & Thermolite EcoMade
• Eco-Credentials: Includes Recycled Materials