SKU: 4515575314

Sea To Summit Reactor Fleeceweight Liner - Regular

Sale price$80.95 Regular price$89.95
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Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 30 - Sep 4

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Sea To Summit Reactor Fleeceweight Liner - RegularBoost your sleep systems warmth with the Reactor Fleeceweight. Thermolite hollow core fibers and grid fleece trap and reflect body heat, adding up to 8C 14F 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 odor control. Using a liner reduces sleeping bag washes, helping preserve loft and

Boost your sleep system’s warmth with the Reactor Fleeceweight. Thermolite® hollow-core fibers 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 odor control. Using a liner reduces sleeping bag washes, helping preserve loft and extend lifespan.

Best Use: Cold-weather backpacking, Ski touring, (Stand-alone) summer use

Features

  • Boosts Sleep System Warmth – Reactor Fleeceweight uses Thermolite® hollow-core fibers 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 odor 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 fibers and bluesign APPROVED materials to minimize environmental impact
  • Can be used on its own as a lightweight sleeping bag in warm-weather conditions

Tech specs

Regular
Weight 14.1oz
Dimensions 76.0 x 31.5 in
Packed Size 5.9 x 9.8 x 5.9 in

Material(s)
100% Post-Consumer Recycled Polyester; Stuff Sack: 100% Polyester

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: 4515575314

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4.1 ★★★★★
Based on 5 reviews
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Nicolette Perri
Chelsea, US
★★★★★ 5
Buy this now!!!
Color: 15- Teal, Size: King (108" X 90")
This is probably one of my favorite purchases from Amazon. I have washed it at least 10 times so far and it still looks the same as when I bought it. It is so soft and snuggly I love it so much. The color is beautiful the furry side is soft and the bottom side has Sherpa on it which is also soft. It's not super heavy and it keeps me warm and it fits my king size bed perfectly. It is such a good value for the money and the quality of it is amazing do yourself a favor and purchase this you will get the best Sleep Quality of your life I swear. I wish I would have had this years ago I don't know what took me so long to find it I have bought several blankets and ended up throwing them away because I did not like the way they felt. This one will be a keeper.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 13, 2026
B
Verified Purchase
Brenda Cordell
Belleville, US
★★★★★ 5
Wrapped in warmth
Color: 01- Tie Dye Grey, Size: King (108" X 90"), Color: 01- Tie Dye Grey, Size: King (108" X 90")
The blanket is sure delight, soft, and well made. It looks beautiful on my bed. I have never been disappointed with this brand.
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Reviewed in the United States on May 27, 2026
N
Verified Purchase
Neicy
Massapequa, US
★★★★★ 4
Soft and comfy!
Color: 06- Beige, Size: Throw (50" X 60")
The material is very soft and thick, but not to the point where it makes me feel hot. The only reason why it hasn't received five stars is because I ordered the twin size thinking it would give me good coverage (and I didn't want to order a bigger size), but it's just an inch or two too small for my body. But it's not a big deal. I love the quality too! You will get your money's worth for sure.
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Reviewed in the United States on March 19, 2026
R
Verified Purchase
Robin
Pawtucket, US
★★★★★ 5
So comfy
Color: 01- Tie Dye Grey, Size: Twin (60" X 80")
I really love this blanket. Fluffy on the outside and warm and comfy on the inside. Perfect size for my couch.
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Reviewed in the United States on May 30, 2026
S
Verified Purchase
Sherry B
San Leandro, US
★★★★★ 5
Best Blanket Ever!!
Color: 16- Dusty Pink, Size: Twin (60" X 80"), Color: 16- Dusty Pink, Size: Twin (60" X 80")
I am in LOVE with this blanket. I got the dusty Rose, the color is Spot On to the pics. It's perfect size, I bought the twin size. It's reversible, and is Super Soft. Plus, No Shedding. Well made, perfect blanket, it's thick yet but not overly making it perfect for year round. Definitely, worth the money. I sleep great with it. It's so pretty, I love it. Will but again in other colors as well.
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Reviewed in the United States on March 20, 2026

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