Sea to Summit | Reactor Lightweight Sleeping Bag Liner
Sea to Summit | Reactor Lightweight Sleeping Bag Liner - Short 5'7" is backordered and will ship as soon as it is back in stock.
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Free Ground Shipping On Orders Over $99
Free Ground Shipping On Orders Over $99
Orders are processed and shipped within 24 hours Monday - Friday, excluding holidays and when we attend events. Orders placed before 10am generally ship same day.
Rider Tested - Rider Approved
Rider Tested - Rider Approved
We only stock gear that has been tested and proven by riders to handle any adventure.
60 Day Returns + Free Exchanges
60 Day Returns + Free Exchanges
You have 60 days to process your return or exchange.
Free return shipping for exchanges if you need a different size.
Description
Description
Sea to Summit | Reactor Lightweight Sleeping Bag Liner
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.
Specs
| Short |
Regular |
Long |
|
|---|---|---|---|
| Weight | 8.3oz | 9.0oz | 9.5oz |
| Max User Height | 5' 7" | 6' 1" | 6' 6" |
| Packed Size | 3.9 x 7.1 x 3.9 in | 3.9 x 7.1 x 3.9 in | 3.9 x 7.1 x 3.9 in |
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
Materials
100% Post-Consumer Recycled Polyester
Stuff Sack: 100% Polyester
Made in China
Comparison Chart
Comparison Chart
Why Us?
Why Us?
Why Choose Moto Camp Nerd?
✅Our team personally tests every item (20+ years moto camping experience)
✅Pack sizes verified to fit motorcycle luggage systems
✅Direct access to real riders who camp for advice and support
✅Only gear that passes real-world testing gets in this store
❌ No generic outdoor gear that's
algorithm-chosen or just thrown in the store without reason.
Bottom line: You're supporting a small business with fellow riders and campers, not just buying a product.
Payment & Security
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