Sea to Summit Reactor Fleeceweight Liner
Sea to Summit Reactor Fleeceweight Liner
Sea to Summit Reactor Fleeceweight Liner
Sea to Summit Reactor Fleeceweight Liner
Sea to Summit Reactor Fleeceweight Liner
Sea to Summit Reactor Fleeceweight Liner
Sea to Summit Reactor Fleeceweight Liner
Sea to Summit Reactor Fleeceweight Liner
Sea to Summit Reactor Fleeceweight Liner
Sea to Summit Reactor Fleeceweight Liner
Sea to Summit Reactor Fleeceweight Liner
Sea to Summit Reactor Fleeceweight Liner
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Sea to Summit Reactor Fleeceweight Liner
Sea to Summit Reactor Fleeceweight Liner
Sea to Summit Reactor Fleeceweight Liner
Sea to Summit Reactor Fleeceweight Liner
Sea to Summit Reactor Fleeceweight Liner
Sea to Summit Reactor Fleeceweight Liner
Sea to Summit Reactor Fleeceweight Liner
Sea to Summit Reactor Fleeceweight Liner
Sea to Summit Reactor Fleeceweight Liner
Sea to Summit Reactor Fleeceweight Liner
Sea to Summit Reactor Fleeceweight Liner
Sea to Summit Reactor Fleeceweight Liner

Sea to Summit Reactor Fleeceweight Liner

Rated 5.0 out of 5
Based on 1 review
$108.00 $97.00 SALE PRICE 10% OFF
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Length
AU delivery Target Standard: 4–6 FedEx: 3–5 business days* 30-day returns Returns & exchanges Support & FAQs Delivery & warranty

Boost your sleep system’s warmth with the Reactor Fleeceweight. Thermolite hollow-core fibres and grid fleece trap and reflect body heat, adding up to 8°C|14°F with minimal weight. The stretch fleece and arm openings allow freedom of movement, while snap attachments fit Sea to Summit sleeping bags for easy access. Easy to clean and quick-drying, it features HeiQ Fresh odour control. Using a liner reduces sleeping bag washes, helping preserve loft and extend lifespan.

Features

  • Boosts Sleep System Warmth – Reactor Fleeceweight uses Thermolite hollow-core fibres and grid fleece to trap warmth with minimal added weight
  • Freedom to Move – Stretch-knit and shaped arm openings allow unrestricted movement, providing natural comfort throughout your sleep
  • Technical Shape and Hood – Ergonomic design with a fitted hood delivers optimal warmth and comfort without extra weight or bulk
  • Stay Fresh Longer – HeiQ Fresh odour control technology keeps the liner fresh after extended use
  • Sleep System Integration – Snap connectors at the shoulders easily pair with Sea to Summit sleeping bags for quick, hassle-free entry and exit
  • Easy to Keep Clean – Machine washable construction simplifies care and reduces wear on your sleeping bag over time
  • Lower Impact Materials – Crafted with certified recycled fibres and bluesign APPROVED materials to minimise environmental impact
  • Can be used on its own as a lightweight sleeping bag in warm-weather conditions

Tech specs

  • Best Use
    Cold-weather backpacking, Ski touring, (Stand-alone) summer use
  • Material(s)
    100% Post-Consumer Recycled Polyester; Stuff Sack: 100% Polyester
Sea to Summit Reactor Fleeceweight Short liner dimensionsSea to Summit Reactor Fleeceweight Regular liner dimensionsSea to Summit Reactor Fleeceweight Long liner dimensions
  Short Regular Long
Weight 365 g 400 g 430 g
Dimensions 178 x 80 cm 193 x 80 cm 206 x 80 cm
Packed Size 15 x 25 x 15 cm 15 x 25 x 15 cm 15 x 25 x 15 cm
Fits Up To Height 170 cm 185 cm 198 cm

Frequently asked questions

Can I return or exchange my order?

Eligible items can be returned within 30 days of purchase, unused with original packaging and labels. Refunds may incur a handling fee; exchanges and store credit avoid it. Return postage is at your cost; conditions apply.

Returns policy
What if I need warranty or repair help?

Contact us before sending anything back, with your order details, photos and a brief description of the issue. We will help with warranty, repair or spare-part options. Coverage varies by product; your consumer rights still apply.

Get warranty help
How long will my order take to arrive?

For in-stock, standard parcels, standard AU shipping targets 4–6 business days after dispatch and FedEx targets 3–5 business days after dispatch. These are targets, not guarantees. Remote and bulky deliveries can take longer. Preorders, public holidays and carrier delays may affect timing. Contact us if you need an item by a specific date.

Delivery information
How much does shipping cost?

Standard AU shipping is $10, or free on eligible orders over $250, excluding heavy or bulky items. FedEx is $25. Product-specific freight charges apply to heavy or bulky items with either service, and remote-area surcharges may apply. Available services and final shipping charges are shown at checkout.

Delivery information
Will I receive tracking details?

Yes, tracking details are sent by email when your order is dispatched. Allow time for the carrier’s first scan. If you cannot find the email, contact us with your order number.

Contact our team
Write a Review
average rating 5.0 out of 5
Based on 1 review
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100% of reviewers would recommend this product to a friend
1 Review
Reviewed by Kathy M.
Verified Buyer
I recommend this product
Age Range
25 - 34
Do you recommend this product?
Yes
Rated 5 out of 5
Review posted

Cozy

Awesome product!

Provides extra warmth on those chilly nights in the huts/bivvys :)

Also protects the inside of your sleeping bag.

Definitely added a decent amount of warmth, could almost use just this as a summer bag :)

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