Sea To Summit Reactor Midweight Liner - Regular
SKU: 4615641501

Sea To Summit Reactor Midweight Liner - Regular

Sale price$71.95 Regular price$79.95
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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For Your Every Summer RSVP, with Code: SUMMER15

Description

Sea To Summit Reactor Midweight Liner - RegularThe Reactor Midweight enhances your sleep system with advanced Thermolite Pro fabric. Infrared absorbing ceramic pigments and hollow core fibers trap body heat, adding up to 6C 11F to a sleep system with minimal bulk. Stretch knit fabric and arm openings allow unrestricted sleep, making it a great fit for any shape sleeping bag. Quick drying and easy to clean, it features HeiQ Fresh odor control and helps extend your sleeping bags lifespan by reducing

The Reactor Midweight enhances your sleep system with advanced Thermolite® Pro fabric. Infrared-absorbing ceramic pigments and hollow-core fibers trap body heat, adding up to 6°C|11°F to a sleep system with minimal bulk. Stretch-knit fabric and arm openings allow unrestricted sleep, making it a great fit for any shape sleeping bag. Quick-drying and easy to clean, it features HeiQ Fresh odor control and helps extend your sleeping bag’s lifespan by reducing wash frequency

Best Use: Backpacking, Cycle touring, Paddle touring

Features

  • Boosts Sleep System Warmth – Thermolite® Pro uses Far Infrared technology and hollow-core fibers to trap and reflect body heat without extra bulk
  • 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

Tech specs

Regular
Weight 12.3 oz
Dimensions 76.0 x 31.5 in
Packed Size 4.5 x 7.5 x 4.5 in
Fits Up To Height 6 ft

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: 4615641501

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4.6 ★★★★★
Based on 2054 reviews
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L
Verified Purchase
L
Louisville, US
★★★★★ 4
Good but left white cast on my skin
Size: 5 Fl Oz (Pack of 1)
Overall, I bought this because of the zinc oxide; it is very easy to use, no strong odor, non-sticky. However, it still left white cast on my face. (The intensity of the white cast is still lower compared to other more expensive brand.)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 22, 2025
C
Verified Purchase
Clifton
Natrona Heights, US
★★★★★ 5
Good lotion
Size: 5 Fl Oz (Pack of 1)
Good lotion. Goes on nice absorbs well great protection
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
P
Verified Purchase
Prz Lineth
West Palm Beach, US
★★★★★ 5
Producto bueno
Size: 5 Fl Oz (Pack of 1)
Honestly, I really liked it. It has a good texture, doesn’t feel heavy, and leaves a nice finish. I’ve been using it every day, and so far it has worked well for me
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
H
Verified Purchase
Hannah
Boise, US
★★★★★ 5
Non greasy, not much white cast compared to other mineral sunscreens
Size: 5 Fl Oz (Pack of 1)
The only one my 13 yr old will tolerate. Its the least greasy feeling of any mineral sunscreen we've tried. At 19% zinc oxide, I'm happy. Its also the least "white" cast of any we've tried. My Fitzpatrick III daughter is happy about that
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026
R
Verified Purchase
remama
Chelsea, US
★★★★★ 3
Liked the old formula more :/ very drying
Size: 5 Fl Oz (Pack of 1), Size: 5 Fl Oz (Pack of 1)
We have used this for the longest time because me and my middle child have an allergy to chemical sunscreens. I remember last summer the formula was slightly more greasy but I preferred that. While I do like how protected my skin is (we haven’t burned at all even with the new formula, even after swimming for hours and not reapplying) it is extremely drying to where my skin looks like it’s cracking and feels very hard to wash off. Like I can still feel it on my skin after showering. May try a different one :/ super bummed! I feel like it is also hard to rub on skin because it absorbs so fast.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026

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