SKU: 34114421068

Sea To Summit Reactor Lightweight Liner - Regular

Sale price$62.96 Regular price$69.95
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 15 - Jul 20

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For Your Every Summer RSVP, with Code: SUMMER15

Description

Sea To Summit Reactor Lightweight Liner - RegularOptimized for minimal weight and maximum warmth, the Reactor Lightweight enhances sleep system performance with advanced Thermolite Pro fabric, which uses infrared absorbing ceramic pigments and hollow core fibers to trap body heat. Adding up to 4C 7F of warmth with minimal bulk, its ideal for ultralight expeditions. Stretch knit fabric and articulated arm openings ensure unrestricted mobility. Treated with HeiQ Fresh odor control, its quick drying,

Optimized for minimal weight and maximum warmth, the Reactor Lightweight enhances sleep system performance with advanced Thermolite® Pro fabric, which uses infrared-absorbing ceramic pigments and hollow-core fibers to trap body heat. Adding up to 4°C|7°F of warmth with minimal bulk, it’s ideal for ultralight expeditions. Stretch-knit fabric and articulated arm openings ensure unrestricted mobility. Treated with HeiQ Fresh odor control, it’s quick-drying, machine washable, and helps prolong your sleeping bag’s lifespan by reducing wash frequency.

Best Use: Backpacking, Cycle touring, Paddle touring

Features

  • Lightweight and insulative, Thermolite® Pro technology with hollow-core fibers and infrared-absorbing pigments enhances warmth with minimal pack size
  • 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
  • Fits any sleeping bag - Stretch fabric means the Reactor Liner fits any shape of sleeping bag
  • 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

Tech specs


Regular
Weight 9.0oz
Dimensions 76.0 x 31.5 in
Packed Size 3.9 x 7.1 x 3.9 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: 34114421068

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4.5 ★★★★★
Based on 24 reviews
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Verified Purchase
Busy Bee
Los Angeles, US
★★★★★ 5
Snuggly, comfy cat magnet
Incredibly soft, cuddly and warm. Very generously sized and comfortable to wear. The color is gorgeous, too. Unfortunately, I made the mistake of leaving it on my bed, and every cat in the house is drawn to it like a magnet! I have a surplus of biscuits, now. I'm still chilly, but my cats are very happy. Time to buy another one.
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Reviewed in the United States on November 11, 2025
D
Verified Purchase
Dawn S.
Belleville, US
★★★★★ 5
Soft and warm
Color: 01 - Pink
I have used this sitting at my computer when it starts getting a little cold in the house because I don't want a huge electric bill so I wrap this around me, I stay warm and my electric bill stays low. I made the mistake of leaving it on the bed when I had to walk to the mailbox, came back in the little dog had curled up in it and gone fast to sleep. Didn't have the heart to take it from her. Now when I wear it, she wants to sit in my lap and have me cover her with it too. I think she wants her own!
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Reviewed in the United States on February 28, 2026
D
Verified Purchase
Deborah Stone
Dallas, US
★★★★★ 5
Comfy, perfect for sofa snuggling.
Color: 01 - Pink
Looked at probably 20 hooded blankets before this one - it has it all. Front closure, large pockets, loose around the neck, fluffy, soft, not overly thick. VERY large for suggly loose fit on sofa with room to move for jigsaw puzzling, gaming, reading. No sleeves but easy to move up and down as needed - doesnt get in the way. A good length in front and back. Bought as gift for a slendet, medium height friend who loves it. Should be roomy for any size. Pink was pleasing - not neon.
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Reviewed in the United States on December 27, 2025
D
Verified Purchase
Dorothy Rosa Durkee
Los Angeles, US
★★★★★ 4
Sumptuously cosy — but heavy for me
Color: 01 - Pink
I’m fond of Bedsure products—have yet to be disappointed by any of the several I’ve bought. But I’m old, and find this one, though cozy and cuddly, too big and too heavy for me now. But it’s a good choice for younger or stronger folk. Washes well, and keeps the warm in and cold out.
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Reviewed in the United States on February 3, 2025
D
Verified Purchase
DonnaF.
Alexandria, US
★★★★★ 5
Cozy blanket
This item is super cozy and warm. It does not have sleeves - so it can be a little unruly to put on - like where is front/back or inside out - but that is because it is more blanket than pullover. There are no buttons - it is sewn closed. I wish you could button up the collar. I washed it before using and it washed and dried well. Nice and soft. However it is cozy and cat approved!
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Reviewed in the United States on September 6, 2025

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