SKU: 34114421068

Sea To Summit Reactor Lightweight Liner - Regular

Sale price$62.96 Regular price$69.95
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  • USA
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Ships within 48 hours · Estimated delivery Jul 15 - Jul 20

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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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4.3 ★★★★★
Based on 1524 reviews
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Elizabeth C. Olliff
Grantham, US
★★★★★ 1
Amateur
Format: Paperback
Lame art and bad prose. This amateur effort deceived my by one good review. Writing this review to tell you not to waste your money.
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Reviewed in the United States on March 25, 2019
S
Verified Purchase
Shannon B.
Port Orchard, US
★★★★★ 5
Better then the competitors
Size: Medium Size
I bought these in both small and medium size. The small bag fits the Kitsch solid hair soap perfectly. They also fit a bar of Dove soap. Some types of soap, like Zest, are a tighter fit bit still work. If you want more of a washcloth style with extra suds, use the medium bag. The medium bag works well with those large bars of soap, like Duke Cannon Big Brick of soap. I hand these off little hooks in my shower so the bag dry faster and so I appreciate the loop they have on the corner. The folding top works way better then a drawstring. I also love the exfoliating texture. Overall, these are well worth the price.
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Reviewed in the United States on May 6, 2026
T
Verified Purchase
toni
San Leandro, US
★★★★★ 5
Good product
Size: Small Size
I actually testy liked this. Works great, fits smaller bar soaps
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Reviewed in the United States on April 27, 2026
A
Verified Purchase
Alexander Giang
Port Orchard, US
★★★★★ 4
Good exfoliating soap bag
Size: Small Size
Pretty good soap bag. Does take a while to get it to foam soap, maybe I'm doing it wrong? Great scrubbing.
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Reviewed in the United States on April 9, 2026
J
Verified Purchase
Joan Meisenhelter
Charlottesville, US
★★★★★ 5
Perfect for travel!
Size: Small Size
Love these and perfect for my bar soap. European hotels love their body wash refillable bottles but I like my soap! This keeps my bar soap clean and prevents me from dropping on the hotel shower floor. Also makes it nice for packing as it takes up less room than a soap dish. Last a long time! Use this all the time on monthly trips and is just like new. Good buy!
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Reviewed in the United States on May 21, 2026

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