Reactor Lightweight Sleeping Bag Liner Regular

About the Sea to Summit Reactor Lightweight Liner – Regular

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

This liner is designed for backcountry trips, multi-day treks, and extended camping where sleeping bag warmth needs vary with conditions. It’s built for users who need thermal versatility without carrying additional weight. The Reactor Lightweight Liner works well in three-season environments, alpine camps, and shoulder-season adventures. It performs across temperature ranges where base sleeping bag warmth requires supplementation whilst maintaining minimal pack volume.

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

The stretch-knit construction provides complete movement freedom whilst fitting inside any sleeping bag. Thermolite Pro insulation uses Far Infrared Technology and hollow-core fibres to trap and reflect body heat, adding up to 4°C of warmth without bulk. The liner also features arm openings with snap closures that increase practicality and unrestricted movement during rest. In addition, HeiQ Fresh odour control treatment keeps the liner fresh throughout extended use, whilst quick-drying performance and easy cleaning reduce washing frequency.

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

Sea to Summit’s expertise in lightweight camp systems ensures this liner meets practical requirements for minimalist travel. The integration of recycled Thermolite materials maintains environmental responsibility without sacrificing thermal performance. This product reduces the need for frequent sleeping bag washing, helping maintain insulation loft and extend equipment lifespan through real-world use.

• Stretch Knit Construction: Engineered fabric provides complete freedom of movement whilst fitting universally into any sleeping bag configuration
• Thermolite Pro Insulation: Far Infrared Technology with hollow-core fibres traps and reflects body heat for enhanced thermal performance
• Arm Openings with Snap Closures: Integrated openings deliver increased practicality for activities whilst maintaining thermal efficiency
• HeiQ Fresh Treatment: Odour control technology maintains freshness throughout extended use periods between laundering
• Quick-Drying Performance: Rapid moisture evaporation enables field cleaning and reduces drying time for continuous use
• Sleeping Bag Protection: Contamination barrier reduces washing frequency, preserving bag loft and extending operational lifespan
• Recycled Materials: Eco-conscious construction incorporates recycled content without compromising performance standards
• Fits Up To: 185cm
• Packed Weight: 255g

The Lowdown

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