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- Sea to Summit Reactor Insulated Sleeping Bag ...
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Item #:
89527546
Sea to Summit Reactor Insulated Sleeping Bag Liner
86% of respondents would recommend this to a friend
Item #:
89527546
€ 166
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
In stock
Imported from USA store
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Order now and get it around Saturday, October 10
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Insulated sleeping bag liner adds extra warmth and personal hygiene to any sleeping bag.
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What Stands Out
Thermal Efficiency
The Reactor's unique insulation material offers superior thermal efficiency, enhancing the performance of your sleeping bag by up to 14°F, keeping you warm in cold conditions.
Compact Design
Lightweight and compact, it easily packs down to fit in your backpack, making it perfect for travelers and campers looking to save space without sacrificing comfort.
Versatile Use
Ideal for various situations, it can be used as a sleeping bag liner, standalone bag in warm weather, or an extra layer for durability, catering to diverse outdoor adventures.
Product Details
| Occupancy | 1 Person |
| Seasons | All Seasons |
| Sport Type | Camping & Hiking |
| Additional Features | Lightweight |
| Closure Type | Drawcord |
| Maximum Height Recommendation | 7 feet |
| Material | thermolite |
| Fill Material Type | Thermolite hollow-core fibers |
| ShellMaterial | thermolite |
| Fabric Type | thermolite |
| Color | Lime or Royal Blue |
| Shape | Mummy |
| Brand Name | Sea to Summit |
| Age Range Description | Adult |
| Global Trade Identification Number | 09327868158317 |
| Number of Items | 1 |
| Unit Count | 1 count |
| Model Number | SS42100 |
| Manufacturer | Sea to Summit |
| Manufacturer Part Number | SS42100 |
| Item Dimensions L x W | 85"L x 31.5"W (215.9 cm) |
| Size | Compact |
| Brand | Sea to Summit |
| Age Range (Description) | Adult |
| Sport | Camping & Hiking |
| Special Feature | Lightweight |
| Fill Material | Thermolite hollow-core fibers |
| Package Weight | 2.53 Pound |
Who Should Buy?
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Cold Weather Campers
This liner enhances warmth in cold conditions, making it ideal for winter camping enthusiasts seeking extra insulation.
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Backpackers
Lightweight and compact, this liner is perfect for backpackers needing space-saving gear that boosts warmth in sleeping bags.
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Hygiene-Conscious Travelers
Ideal for those staying in shared accommodations, it keeps sleeping bags clean and adds a layer of comfort.
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Warm Weather Users
Not suitable for hot climates, as it may cause discomfort and overheating during warmer nights.
Product Description
Have any Query? Chat with us
Customer Questions & Answers
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Question:
What is the Sea to Summit Reactor Insulated Sleeping Bag Liner made of?
Answer: The Sea to Summit Reactor Insulated Sleeping Bag Liner is crafted from a blend of high-quality materials, including an insulated and lightweight Thermolite fabric. This unique combination allows for exceptional warmth without adding significant bulk. Thermolite is known for its thermal efficiency, allowing it to trap warm air while remaining breathable. This makes the liner ideal for cold weather camping or backpacking trips, providing extra insulation inside your sleeping bag or serving as a standalone sleeping option in milder conditions. -
Question:
How does the Reactor liner enhance the warmth of my sleeping bag?
Answer: The Reactor liner effectively boosts the warmth of your sleeping bag by adding an extra layer of insulation. When used together with your sleeping bag, the liner helps to trap body heat, making it easier to stay warm during chilly nights. By using the Reactor liner, you can extend the comfort range of your sleeping system, which is particularly beneficial during early spring or late fall camping. This means that you can enjoy longer outdoor adventures without compromising on comfort. -
Question:
Can the Sea to Summit Reactor liner be used on its own?
Answer: Yes, the Sea to Summit Reactor Insulated Sleeping Bag Liner can be used as a standalone sleeping bag in warmer weather. With its lightweight design and insulation properties, it offers a compact option for summer camping or backpacking trips. If you're camping in a location with mild temperatures, the Reactor liner will provide comfort without the bulk of a traditional sleeping bag, allowing for a more comfortable night's sleep under the stars. -
Question:
What temperatures is the Reactor insulated liner suitable for?
Answer: The Reactor Insulated Liner is designed to enhance the insulation of your sleeping bag, typically increasing its warmth rating by around 5 to 10 degrees Fahrenheit. It's suitable for temperatures down to around 30 degrees Fahrenheit when paired with a well-rated sleeping bag. For camping trips in cooler climates, this adaptability makes it a versatile addition to your gear, ensuring you stay comfortable throughout the night, regardless of the conditions. -
Question:
Is the Sea to Summit Reactor liner machine washable?
Answer: Yes, the Sea to Summit Reactor Insulated Sleeping Bag Liner is machine washable, making it convenient to maintain. You can wash it on a gentle cycle using a mild detergent. After washing, it’s best to air dry the liner or tumble dry it on a low heat setting to preserve its insulation properties. Keeping your liner clean is essential for hygiene and longevity, especially after multiple camping adventures. Regular maintenance will ensure it remains in optimal condition for your future trips. -
Question:
What is the weight of the Reactor insulated liner, and how compact is it?
Answer: The Sea to Summit Reactor Insulated Sleeping Bag Liner weighs approximately 11 ounces, making it lightweight and ideal for backpackers looking to minimize pack weight. When packed, it compresses down to a compact size that fits easily into your backpack without taking up valuable space. This portability is crucial for long treks where every ounce counts, ensuring that you can carry your insulation with ease while still having room for other essential gear. -
Question:
Can I use the Reactor liner as a sleeping bag for my child?
Answer: Absolutely, the Sea to Summit Reactor Insulated Sleeping Bag Liner can be a suitable option for children, especially during camping trips. Its smaller dimensions and lighter weight make it practical for kids, offering them warmth and comfort while providing an extra layer of security in cooler conditions. This versatility allows it to serve as a cozy sleeping solution for young campers, encouraging their love for the outdoors in a safe and comfortable way. -
Question:
How does the Reactor liner compare to other sleeping bag liners?
Answer: The Sea to Summit Reactor Insulated Sleeping Bag Liner stands out due to its unique combination of lightweight insulation and thermal efficiency. Unlike many other sleeping bag liners that may add bulk without enhancing warmth, the Reactor uses high-quality Thermolite material, ensuring superior heat retention in a compact form. This makes it a top choice for adventurers who seek reliable performance without compromising on comfort, setting it apart from standard cotton or silk liners commonly found in the market. -
Question:
What are the dimensions of the Reactor insulated liner?
Answer: The Sea to Summit Reactor Insulated Sleeping Bag Liner typically measures about 86 x 35 inches, providing adequate coverage for most users. This generous sizing allows for ample movement during sleep, ensuring comfort throughout the night. Its design also accommodates various sleeping bag styles, making it a versatile addition to your camping gear. This ensures that whether you are a side sleeper or enjoy changing positions, the Reactor liner will keep you cozy and well-covered. -
Question:
Where can I buy the Sea to Summit Reactor Insulated Sleeping Bag Liner in Saint Pierre and Miquelon?
Answer: You can buy the Sea to Summit Reactor Insulated Sleeping Bag Liner at Ubuy, a reliable online shopping platform that offers a wide variety of outdoor gear. Ubuy provides a seamless shopping experience, making it easy to find and purchase this product along with many other camping essentials. With Ubuy, you can explore multiple options, ensuring that you get exactly what you need for your outdoor adventures.
Sea to Summit Liners SS42100 Editorial Review
Sea to Summit Reactor Insulated Sleeping Bag Liner is an essential for campers and hikers looking for added warmth in various conditions. It’s designed for temperatures down to 25 degrees Fahrenheit below your comfort range and is lightweight, weighing only 12.96 ounces, making it easy to pack for all seasons. Users have praised its versatility, serving as a warm sleep liner or a cozy camp blanket around the fire. The drawcord closure adds convenience while maintaining warmth, and the synthetic Thermolite fill ensures comfort on cold nights. Many customers report significant improvement in sleeping bag comfort during chilly outings, highlighting its effectiveness in cold weather.
Customer Reviews & Ratings
53 customers ratings
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5 Star
85%
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4 Star
11%
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3 Star
4%
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2 Star
0%
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1 Star
0%
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Pros
- Lightweight, easy to pack for adventures
- Versatile for multiple camping situations
- Keeps you warm in cold temperatures
- Drawcord closure for snug fit
- Compact size when packed away
Cons
- Some users feel it's overpriced despite its benefits
Platform Trust & Buyer Confidence
JK
Jasmin
Verified buyer
“Great products and very good service: very easy and very fast international delivery.”
9 September 2026 · via Trustpilot
AG
Anke
Verified buyer
“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”
10 September 2026 · via Trustpilot
H
Hazel
Verified buyer
“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”
10 September 2026 · via Trustpilot
O
Opaleye
Verified buyer
“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”
11 September 2026 · via Trustpilot
AC
Adele
Verified buyer
“Easy to find and order what you want on the website. Delivery is quick to the UK”
8 September 2026 · via Trustpilot
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Important information
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€ 166
Order now and get it around Saturday, October 10
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
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Features & Benefits
- Extends the comfort range of any sleeping bag.
- Made with Thermolite fibers for superior warmth and softness.
- Available in three different weights for varying levels of warmth.
- Drawcord footbox allows for ventilation and easy mobility.
- Includes HeiQ Fresh technology to combat odors.
- Guaranteed for the lifetime of the product by Sea to Summit.
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