Manufacturer:

Sea to Summit Reactor Lightweight Liner

£45.00 inc. VAT
£39.35 inc. VAT
SKU: 102915
The Sea to Summit Reactor Lightweight Liner adds warmth and comfort to your sleeping bag without adding bulk. Made with stretch Thermolite® Pro fabric, it moves with you for a more natural sleep. Armholes provide added freedom, making it easy to adjust or sit up when needed. It boosts warmth by up to 4°C while remaining lightweight and packable. Ideal for backpacking, travel, and extending the life of your sleeping bag.

Size: Regular

Colour: Pewter

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Availability: 1 in stock

The Sea to Summit Reactor Lightweight Liner is a simple and effective way to increase warmth and comfort on cooler nights. Made from stretch-knit Thermolite® Pro fabric, it adapts to your movements, providing a more natural and less restrictive sleep experience. Integrated armholes give you added freedom, allowing you to move, read, or manage gear without leaving the liner. The Thermolite® Pro fabric uses hollow-core fibres and Far Infrared technology to trap and reflect body heat, boosting warmth by up to 4°C without adding noticeable weight or bulk. Designed to fit inside any sleeping bag, it can also be secured into compatible Sea to Summit bags for a more stable setup. Quick-drying and treated with HeiQ Fresh odour control, it stays fresher for longer on extended trips. As well as improving warmth, the liner helps protect your sleeping bag by reducing the need for frequent washing, helping maintain insulation performance over time.

Features:
Thermolite® Pro fabric adds up to 4°C of warmth
Stretch-knit construction for unrestricted movement
Integrated armholes for added comfort and flexibility
HeiQ Fresh odour control for longer-lasting freshness
Quick-drying and machine washable
Compatible with all sleeping bags and Sea to Summit snap system
Helps extend the lifespan of your sleeping bag

Specifications:
Added Warmth: Up to 4°C
Best Use: Backpacking, camping, winter camping
Shape: Mummy
Includes: Ultra-Sil stuff sack
Materials: Thermolite® Pro, Thermolite® EcoMade

Fits Up To Height:
Short: 170cm
Regular: 185cm
Long: 198cm

Weight:
Short: 235g
Regular: 255g
Long: 260g

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The Sea to Summit Reactor Lightweight Liner is a simple and effective way to increase warmth and comfort on cooler nights. Made from stretch-knit Thermolite® Pro fabric, it adapts to your movements, providing a more natural and less restrictive sleep experience. Integrated armholes give you added freedom, allowing you to move, read, or manage gear without leaving the liner. The Thermolite® Pro fabric uses hollow-core fibres and Far Infrared technology to trap and reflect body heat, boosting warmth by up to 4°C without adding noticeable weight or bulk. Designed to fit inside any sleeping bag, it can also be secured into compatible Sea to Summit bags for a more stable setup. Quick-drying and treated with HeiQ Fresh odour control, it stays fresher for longer on extended trips. As well as improving warmth, the liner helps protect your sleeping bag by reducing the need for frequent washing, helping maintain insulation performance over time.

Features:
Thermolite® Pro fabric adds up to 4°C of warmth
Stretch-knit construction for unrestricted movement
Integrated armholes for added comfort and flexibility
HeiQ Fresh odour control for longer-lasting freshness
Quick-drying and machine washable
Compatible with all sleeping bags and Sea to Summit snap system
Helps extend the lifespan of your sleeping bag

Specifications:
Added Warmth: Up to 4°C
Best Use: Backpacking, camping, winter camping
Shape: Mummy
Includes: Ultra-Sil stuff sack
Materials: Thermolite® Pro, Thermolite® EcoMade

Fits Up To Height:
Short: 170cm
Regular: 185cm
Long: 198cm

Weight:
Short: 235g
Regular: 255g
Long: 260g

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