---
product_id: 762458
title: "Sea to Summit Thermolite Reactor Extreme Sleeping Bag Liner - Red, 90 x 210 Centimeter"
brand: "sea to summit"
price: "7035967₫"
currency: VND
in_stock: true
reviews_count: 6
url: https://www.desertcart.vn/products/762458-sea-to-summit-thermolite-reactor-extreme-sleeping-bag-liner-red
store_origin: VN
region: Vietnam
---

# Adds 25°F warmth Mummy shape for snug fit Compact 6.5 x 4.5 inches Sea to Summit Thermolite Reactor Extreme Sleeping Bag Liner - Red, 90 x 210 Centimeter

**Brand:** sea to summit
**Price:** 7035967₫
**Availability:** ✅ In Stock

## Summary

> 🌌 Sleep like a star in the great outdoors!

## Quick Answers

- **What is this?** Sea to Summit Thermolite Reactor Extreme Sleeping Bag Liner - Red, 90 x 210 Centimeter by sea to summit
- **How much does it cost?** 7035967₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/762458-sea-to-summit-thermolite-reactor-extreme-sleeping-bag-liner-red)

## Best For

- sea to summit enthusiasts

## Why This Product

- Trusted sea to summit brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Ready to Go:** Includes a convenient stuff sack for easy storage and transport, so you can hit the trails without a hitch.
- • **Ultimate Warmth:** Experience an additional 25°F of cozy comfort, perfect for those chilly nights under the stars.
- • **Versatile Design:** Mummy shape with a drawcord hood ensures a snug fit, making it ideal for all your camping adventures.
- • **Hygiene & Comfort:** Keep your sleeping bag fresh and clean while enjoying the soft, stretch-knit Thermolite fabric.
- • **Lightweight Luxury:** Weighing in at just 14oz, this liner is your go-to for effortless packing and portability.

## Overview

The Sea to Summit Thermolite Reactor Extreme Sleeping Bag Liner is designed to enhance warmth and hygiene in your sleeping bag. Measuring 90 x 210 cm, it features lightweight Thermolite insulation that adds up to 25°F of warmth. The mummy shape with a drawcord hood ensures a snug fit, while the included stuff sack makes it easy to pack and carry. Weighing only 14oz, it's perfect for camping and hiking enthusiasts looking for comfort and convenience.

## Description

Sea to Summit Thermolite Reactor Extreme Sleeping Bag Liner - Red, 90 x 210 Centimeter

## Features

- thermolite
- Imported
- Insulated sleeping bag liner adds extra warmth and personal hygiene to any sleeping bag
- Reactor Extreme features heavier weight Thermolite throughout and adds up to 25F degrees
- Thermolite hollow core insulation is lightweight, soft and comfortable with stretch knit construction
- Mummy shaped with toe-box, draw cord hood and included stuff sack
- Extreme (M) Dimensions 83 x 35-inches; packed size 6.5 x 4.5-inches; weight 14oz

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Sea to Summit |
| Color | Red |
| Occupancy | 1 |
| Shape | Mummy |
| Seasons | Evergreen |
| Temperature Rating | Extreme |
| Age Range (Description) | Adult |
| Sport | Camping & Hiking |
| Special Feature | Reactor Extreme |
| Material | thermolite |
| Fill Material | Thermolite |
| Product Dimensions | 83"L x 35"W |
| Closure Type | Zipper |
| Item Weight | 0.88 Pounds |
| Outer Material | Nylon |
| Fabric Type | thermolite |
| Size | 90 x 120 cm cm |
| Global Trade Identification Number | 09327868022304 |
| Item Package Dimensions L x W x H | 7.87 x 5.43 x 4.09 inches |
| Package Weight | 0.41 Kilograms |
| Item Dimensions  LxWxH | 83 x 35 x 0.4 inches |
| Brand Name | Sea to Summit |
| Country of Origin | China |
| Model Name | Thermolite Reactor Extreme |
| Suggested Users | unisex |
| Number of Items | 1 |
| Manufacturer | Sea to Summit |
| Part Number | AREACTOREXT |
| Model Year | 2014 |
| Style | Extreme (83 X 35) |
| Fill Material Type | Thermolite |

## Product Details

- **Brand:** Sea to Summit
- **Color:** Red
- **Occupancy:** 1
- **Shape:** Mummy
- **Seasons:** Evergreen
- **Temperature Rating:** Extreme
- **Age Range (Description):** Adult
- **Sport:** Camping & Hiking
- **Special Feature:** Reactor Extreme
- **Material:** thermolite

## Images

![Sea to Summit Thermolite Reactor Extreme Sleeping Bag Liner - Red, 90 x 210 Centimeter - Image 1](https://m.media-amazon.com/images/I/71lTNobV6sL.jpg)
![Sea to Summit Thermolite Reactor Extreme Sleeping Bag Liner - Red, 90 x 210 Centimeter - Image 2](https://m.media-amazon.com/images/I/81K1HPK6MeL.jpg)
![Sea to Summit Thermolite Reactor Extreme Sleeping Bag Liner - Red, 90 x 210 Centimeter - Image 3](https://m.media-amazon.com/images/I/8160Ljdc0TL.jpg)
![Sea to Summit Thermolite Reactor Extreme Sleeping Bag Liner - Red, 90 x 210 Centimeter - Image 4](https://m.media-amazon.com/images/I/81FUwt0pDZL.jpg)
![Sea to Summit Thermolite Reactor Extreme Sleeping Bag Liner - Red, 90 x 210 Centimeter - Image 5](https://m.media-amazon.com/images/I/81hJYZcIRaL.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Pleased with the item but…
*by A***R on April 23, 2023*

Really satisfied with the feel of the material, the durability, and effectiveness of the bag liner. I got the extreme version because I wanted to be able to pair it with my 20° bag and get more range and extend its life. I also planned to use the bag liner as a hot summer night sleeping bag. It’s also much easier to wash than a sleeping bag. So it’s nice to use on trip you might be rolling a little grubby.Turns out my favorites use for it is as a summer bag. It’s very small when packed compared to a sleeping bag and works well to keep you comfortable on a backpacking or bikepacking trip on warm nights. It also works well as a bag protector with added warmth to my -20° winter bag. Allowing you to sleep without base layers if that’s your thing.It does not however extended the range of my 20° bag. So if you’re thinking to buy this to push your 20-30° bag to a 0° then I suggest putting them money towards a proper 0° instead. Sleeping outside in zero degrees is really cold and while this helps a bit, it doesn’t make up for the right gear for the job.

### ⭐⭐⭐⭐⭐ Awesome lightweight blanket
*by V***N on February 23, 2025*

I bought this for Everest Base Camp trip and I used this every night. Our guiding company gave me a sleeping bag but I felt more comfortable getting into this liner first and then the sleeping bag. This liner definitely added more warmth. I also used it later during our camper van trip in New Zealand on chilly nights.

### ⭐⭐⭐⭐⭐ Warm and comfortable
*by D***N on January 18, 2025*

Cozy, warm and comfortable.

## Frequently Bought Together

- Sea to Summit Thermolite Reactor Extreme Sleeping Bag Liner - Red, 90 x 210 Centimeter
- Squeeze Water Filtration System

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-03-02*