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Sea To Summit Thermolite® Reactor Extreme

Shopping Satisfaction
Sea to Summit
(2 Item(s) In Stock)
Increase the warmth of your sleeping bag and get a better nights sleep with this lightweight liner
£ 60.00
£ 51.00


All orders over £50 * EXCLUDES BLADED ITEMS


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01995 601011

Mon. to Sat. 10am to 3pm

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  1. The Thermolite® Reactor Extreme increases sleeping bag performance by up to15oC with its super insulating 110g/m2 Thermolite® fabric.

    The spacious design is slightly tapered from head to foot to reduce weight and increase thermal efficiency, and the drawcord hood can be cinched down for extra warmth when required. This knit fabric also has serious stretch to it, making the Reactor Extreme the ideal liner for the restless sleeper.
  2.  - Mummy shape with a box foot
     - Draw cord hood with a mini cord lock
     - Packs into its own Ultra-Sil stuff sack
  3. Weight: 399g
    Dimensions: 183 x 90cm
    Suitability: Cool weather
  4. THERMOLITE® Insulation: Designed for ultimate performance, is made from specially engineered fibers to achieve a high CLO value with low weight. THERMOLITE® HL-1 high loft insulation is a fiber fill constructed with a unique 3D crimp of hollow-core and solid fibers,which provide excellent lightweight warmth with superior durability.

    The THERMOLITE® insulation lofts up inside the Air Sprung Cells™ to prevent convective heat loss from your warm body to the cold ground.Exkin Platinum® and THERMOLITE® are combined to great effect in each of the Insulated versions of our mats.
Customer reviews
Shopping Satisfaction
It's light and seems to do the job well. I'm not sure it adds the '16 degrees C' it claims, but adds to make a 3 season sleeping bag suitable for 4 season use. A lot cheaper than other options such as a new bag or a down blanket.
Gareth H.

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