Sea to Summit Thermolite Reactor Extreme Sleeping Bag Liner
Sea to Summit Thermolite Reactor Extreme Sleeping Bag Liner Model
Sea to Summit Thermolite Reactor Extreme Sleeping Bag Liner Foot Drawcord
Sea to Summit Thermolite Reactor Extreme Sleeping Bag Liner Stuff Sack
Sea to Summit Thermolite Reactor Extreme Sleeping Bag Liner Drawcord
Sea to Summit Thermolite Reactor Extreme Sleeping Bag Liner Drawcord Tight
Sea to Summit Thermolite Reactor Extreme Sleeping Bag Liner Material
Sea to Summit Thermolite Reactor Extreme Sleeping Bag Liner Mummy
Sea to Summit Thermolite Reactor Extreme Sleeping Bag Liner
Sea to Summit Thermolite Reactor Extreme Sleeping Bag Liner Model
Sea to Summit Thermolite Reactor Extreme Sleeping Bag Liner Foot Drawcord
Sea to Summit Thermolite Reactor Extreme Sleeping Bag Liner Stuff Sack
Sea to Summit Thermolite Reactor Extreme Sleeping Bag Liner Drawcord
Sea to Summit Thermolite Reactor Extreme Sleeping Bag Liner Drawcord Tight
Sea to Summit Thermolite Reactor Extreme Sleeping Bag Liner Material
Sea to Summit Thermolite Reactor Extreme Sleeping Bag Liner Mummy

Sea to Summit Thermolite Reactor Extreme Sleeping Bag Liner

£75.00
By Sea to Summit
Size
Minus Plus

Free Delivery: Available on all orders over £50.

Next-Day Delivery: Available for orders placed before 3 PM with DPD (additional charges apply).

Free DPD Upgrade: Orders over £250 qualify for a complimentary DPD upgrade.

Secure Checkout: Includes theft protection for added peace of mind.

Refunds & Exchanges: Contact us within 30 days for hassle-free returns or exchanges.

THE SEA TO SUMMIT THERMOLITE REACTOR EXTREME SLEEPING BAG LINER

Ideal as part of a cold climate sleep system or standalone bag in warm weather.

The THERMOLITE®Pro Reactor Extreme liner is Sea to Summit’s warmest knitted sleeping bag liner. If your adventures take you to colder climates, the Reactor Extreme will add plenty of warmth to a sleeping bag. Plus in warmer weather, it can be used as a ‘stand alone’ sleeping bag. With a mummy shape and Thermolite® Pro fabric, the Reactor Extreme Liner featuring a drawcord uses new infrared technology, which reflects the body's infrared heat back to you, paired with comfortable stretch fabric to add warmth, versatility, and increased insulation. The Reactor Extreme feature offers additional heat retention best suited to cold conditions.

FEATURES OF THE SEA TO SUMMIT THERMOLITE REACTOR EXTREME SLEEPING BAG LINER

  • Traps insulating air to increase warmth of a 1 season sleeping by up to 15% and 7% for a 3 season bag

  • Sustainable construction- 50% Thermolite®EcoMade All-Season fabric, which is made with 100% textile waste and GRS Certified, and 50% Thermolite Pro with infrared technology

  • Treated with Heiq Fresh FFL biocide-free effective odour control

  • Technical mummy-shape with drawstring hood.

  • Available in 2 sizes- regular and compact

  • Easy care – machine wash with no special soap needed. Avoid fabric softeners and dryer sheets.

  • Packs into its own Ultra-Sil stuff sack

 

  • Size + Specifications

    -DIMENSIONS
    Standard: 216 x 80 cm
    Compact: 198 x 80 cm

    -PACKED SIZE
    Standard: 12 x 15 cm
    Compact: 12 x 15 cm

    -WEIGHT
    Standard: 364 g
    Compact: 342 g

  • Weight

    364 g

More details Right
Valley and Peak Promise

"The Valley and Peak promise is built on three pillars: thoughtfully curated gear, exceptional customer service, and a genuine love for the outdoors. As an independent, family-run business, we carefully select products from a wide variety of cottage gear brands and trusted names, ensuring that each item is rigorously tested and loved by our team. Our customer service is a cornerstone of our brand, offering personalised support to help you choose and care for your gear with confidence"

Jim De'Ath, Managing Director