SKU: 93120168996

Sea To Summit Reactor Fleece Sleeping Bag Liner

Sale price$64.09 Regular price$71.21
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USA
  • USA
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Ships within 48 hours · Estimated delivery Jul 19 - Jul 24

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Description

Sea To Summit Reactor Fleece Sleeping Bag LinerThe Reactor Fleece Liner built from hollow core Thermolite Pro fibres used in a grid pattern to deliver our warmest sleeping bag liner and the core of any quality cold weather sleep system. You can regulate your temperature using the shoulder zippers and drawcord footbox, which also align perfectly with the Free Flow Zip system of Sea to Summit sleeping bags. The versatile Reactor Fleece Liner delivers comfort across multiple seasons or can even be

The Reactor Fleece Liner built from hollow-core Thermolite® Pro fibres used in a grid-pattern to deliver our warmest sleeping bag liner and the core of any quality cold weather sleep system. You can regulate your temperature using the shoulder zippers and drawcord footbox, which also align perfectly with the Free Flow-Zip system of Sea to Summit sleeping bags. The versatile Reactor Fleece Liner delivers comfort across multiple seasons or can even be used as a stand-alone sleeping bag in warm weather. Additionally, the drawcord footbox offers plenty of ventilation and the versatility of walking around camp while still wearing your liner if needed.

  • Thermal boost to retain heat and warmth, as the core of your sleep system the Reactor liner extends the performance of your sleeping bag and sleeping mat in the coldest of conditions
  • Hollow-core Thermolite® EcoMade fibres are used in a grid-pattern fleece for maximum warmth retention
  • Drawcord footbox can be opened or closed for optimal comfort and integrates perfectly with the footbox of our Free-Flow Zip system in select Sea to Summit sleeping bags
  • HeiQ Fresh odour control technology helps keep the liner fresh even after extended use
  • A mummy shape designed for maximum thermal efficiency and includes shoulder zippers and footbox drawcord for additional temperature regulation
  • Sea to Summit Guarantee is offered for the Lifetime of this product
  • COMES WITH

    Storage Case

  • MATERIAL(S)

    Thermolite® EcoMade Polyester

  • SPECIAL

    Bio-based HeiQ Fresh Odor Control

    COMPACT - 78IN STANDARD - 85IN
    DIMENSIONS 78 x 31.5 in 85 x 31.5 in
    PACKED SIZE 9.8 x 3.5 x 5.5 in 9.8 x 3.5 x 5.5 in
    WEIGHT 13.8oz 14.8oz
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 93120168996

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4.1 ★★★★★
Based on 9 reviews
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A
Verified Purchase
Amazon Customer
Fort Morgan, US
★★★★★ 4
Great value
Good quality at a great price
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Reviewed in the United States on February 3, 2025
L
Verified Purchase
Lucas Secoy
New York, US
★★★★★ 5
Cashmere dream
Just arrived today. Very soft, light and warm. Fits comfortably without being tight. This hat is really well made and it far exceeds the price point it’s sold at.
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Reviewed in the United States on November 20, 2025
S
Verified Purchase
Susan H. Chinchar
Waukegan, US
★★★★★ 5
Love perfect fit..doesn't move up and super soft
Love this hat! Gift for my nephew. He has had it stolen by others since it is perfect fit and super soft.
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Reviewed in the United States on February 5, 2026
Verified Purchase
龍気
Fort Morgan, US
★★★★★ 5
Perfection in the form of a hat.
Best hat ever! It’s perfect in every way, fits right to your head like a skully cap should. It’s not too thick or thin for a chilly winter in the mountain forest, I wore it to sleep a few times, doesn’t seem to make me too hot.
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Reviewed in the United States on February 4, 2026
H
Verified Purchase
hngrdg
Los Angeles, US
★★★★★ 5
Breathable, comfortable, warm
Color: Burgundy
Breathable during heavy exercise. Long enough to double up when used as a neck gaiter. Soft and comfortable. Warm.
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Reviewed in the United States on February 10, 2026

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