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Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Aug 25 - Aug 30
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Reactor Lightweight Liner Sea To SummitOptimised 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 fibres 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 odour control, its quick drying,
Optimised 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 fibres 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 odour control, it’s quick-drying, machine washable, and helps prolong your sleeping bag’s lifespan by reducing wash frequency.
FEATURES
- Lightweight and insulative, Thermolite® Pro technology with hollow-core fibres 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 fabirc means the Reactor Liner fits any shape of sleeping bag
- Stay Fresh Longer – HeiQ Fresh odour 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 fibres and bluesign APPROVED materials to minimise environmental impact
TECH SPECS
Weight
S: 235g
R: 255g
L: 260g
Certification
RCS - 1114661
Dimensions
Short: 80 x 178cm
Regular: 80 x 193cm
Long: 80 x 198cm
Ideal for
Backpacking, Cycle touring, Paddle touring
Packed dimensions
10 x 10 x 18cm
Recommended user height
S: 170cm
R: 183cm
L 198cm
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.8 ★★★★★
Based on 25 reviews
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Product Reviews
★★★★★ 5
Puppy toy
Color: Pink "Tie Me In Knots" Shoe, Size: Small
Cute and small, perfect for a tiny puppy.
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Reviewed in the United States on April 18, 2026
★★★★★ 5
Cute gift for a dog!
Stylish!
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Reviewed in the United States on May 19, 2026
★★★★★ 5
Cute
Cute bag for my dog
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Reviewed in the United States on May 8, 2026
★★★★★ 5
Every Glamorous Pup Needs Pawfum
Color: Black Noir Pawfum, Size: One Size, Color: Black Noir Pawfum, Size: One Size
As a sophisticated young lady with impeccable taste, I can confidently say that the Chewnel Noir Pawfum is a must-have for every fashionable pup.
The moment I got my paws on it, I knew it was special. It’s soft, adorable, and the perfect size for carrying around the house, chewing, cuddling, and showing off during my puppy playdates. It adds just the right amount of luxury to my toy collection.
Not only does it look fabulous in photos, but it also keeps me entertained for hours. My humans can’t stop laughing every time they see me strutting around with my designer “pawfum.”
If you’re a puppy who loves the finer things in life, this toy deserves a spot in your collection.
Five paws from Pennie Lou! Because every glamorous girl needs her signature scent.
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Reviewed in the United States on June 7, 2026
★★★★★ 5
Nice dig you
Color: Black Noir Pawfum, Size: One Size
So cute and my yorkies love it
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Reviewed in the United States on April 25, 2026