---
product_id: 621873182
title: "Sea to Summit Reactor Insulated Sleeping Bag Liner"
brand: "sea to summit"
price: "208930CFA"
currency: XOF
in_stock: true
reviews_count: 12
url: https://www.desertcart.sn/products/621873182-sea-to-summit-reactor-insulated-sleeping-bag-liner
store_origin: SN
region: Senegal
---

# Drawcord footbox for customizable comfort Mummy shape for thermal efficiency Thermolite EcoMade fibers for max warmth Sea to Summit Reactor Insulated Sleeping Bag Liner

**Brand:** sea to summit
**Price:** 208930CFA
**Availability:** ✅ In Stock

## Summary

> 🔥 Sleep smarter, not colder — the ultimate insulated liner for trailblazers!

## Quick Answers

- **What is this?** Sea to Summit Reactor Insulated Sleeping Bag Liner by sea to summit
- **How much does it cost?** 208930CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/621873182-sea-to-summit-reactor-insulated-sleeping-bag-liner)

## 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

- • **Next-Level Warmth:** Hollow-core Thermolite fibers trap heat without bulk, keeping you cozy in temps below 8°C.
- • **Odor-Free Adventures:** HeiQ Fresh technology keeps your liner smelling clean, even after extended backcountry use.
- • **Seamless Integration:** Designed to pair flawlessly with Sea to Summit’s Free-Flow Zip system for an all-in-one sleep setup.
- • **Built to Last a Lifetime:** Backed by Sea to Summit’s lifetime guarantee—your ultimate camping companion for years of epic trips.
- • **Tailored Thermal Control:** Adjustable drawcord footbox and shoulder zippers let you dial in your perfect microclimate all night long.

## Overview

The Sea to Summit Reactor Insulated Sleeping Bag Liner features advanced Thermolite EcoMade fibers in a grid-pattern fleece that maximizes warmth retention while maintaining lightweight comfort. Its mummy shape and adjustable drawcord footbox optimize thermal efficiency and personalized temperature control. Integrated HeiQ Fresh odor control technology ensures lasting freshness, and it pairs perfectly with Sea to Summit’s Free-Flow Zip system. Rated for temperatures below 8°C and backed by a lifetime guarantee, this liner is a must-have for serious campers seeking warmth, hygiene, and durability.

## Description

desertcart.com : Sea to Summit Reactor Sleeping Bag Liner, Fleece Standard (85 x 31.5) : Sports & Outdoors

Review: Amazing. Must have. - An absolute must for campers. It is insanely comfortable and warm. I am wearing as I write this review. I was shivering in camp last night under my down blanket. I woke up and put this bad boy on and slept like a babe the rest of the night. Love it. I have the breeze one for summer as well.
Review: Warm and comfortable. - Kept me pretty warm with my 32F down sleeping bag in 25F weather. My feet got a little cold but wasn’t bad enough to keep me up all night.

## Features

- thermolite
- Imported
- Insulated sleeping bag liner adds extra warmth and personal hygiene to any sleeping bag.
- Hollow-core Thermolite EcoMade fibers are used in a grid-pattern fleece for maximum warmth retention
- Drawcord footbox can be opened or closed for optimal comfort and integrates perfectly with the footbox of our Free-Flow Zip system in select Sea to Summit sleeping bags
- HeiQ Fresh odor control technology helps keep the liner fresh even after extended use
- A mummy shape designed for maximum thermal efficiency including shoulder zippers and a footbox drawcord for additional temperature regulation, Sea to Summit Guarantee is offered for the Lifetime of this product

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CT6BHPR5 |
| Additional Features | Improved ventilation and mobility |
| Age Range Description | Adult |
| Best Sellers Rank | #9,459 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #4 in Camping Sleeping Bag Liners |
| Brand | Sea to Summit |
| Brand Name | Sea to Summit |
| Closure Type | Drawstring |
| Color | white |
| Customer Reviews | 4.6 out of 5 stars 53 Reviews |
| Fabric Type | thermolite |
| Fill Material Type | Thermolite |
| Global Trade Identification Number | 09327868158379 |
| Item Dimensions L x W | 85.04"L x 31.5"W |
| Item Weight | 15.84 ounces |
| Manufacturer | Sea to Summit |
| Manufacturer Part Number | ASL031031-191904 |
| Material | thermolite |
| Maximum Height Recommendation | 85 inches |
| Model Number | ASL031031-191904 |
| Number of Items | 1 |
| Occupancy | 1 |
| Seasons | 3 Seasons |
| Shape | Mummy |
| ShellMaterial | thermolite |
| Size | 85 x 31.5" |
| Temperature Rating | Below 8 degrees centigrade |
| Thermal Resistance | 7.78 watts_per_meter_per_celsius |

## Product Details

- **Age Range (Description):** Adult
- **Brand:** Sea to Summit
- **Color:** navy
- **Material:** thermolite
- **Occupancy:** 1
- **Seasons:** 3 Seasons, Spring
- **Shape:** Mummy
- **Special Feature:** Improved ventilation and mobility
- **Sport:** Backpacking, Camping & Hiking, Mountaineering
- **Temperature Rating:** Below minus 5 degree Celsius

## Images

![Sea to Summit Reactor Insulated Sleeping Bag Liner - Image 1](https://m.media-amazon.com/images/I/51TmLHCmqPL.jpg)
![Sea to Summit Reactor Insulated Sleeping Bag Liner - Image 2](https://m.media-amazon.com/images/I/814fEI0Y8kL.jpg)
![Sea to Summit Reactor Insulated Sleeping Bag Liner - Image 3](https://m.media-amazon.com/images/I/71nM+r47v6L.jpg)
![Sea to Summit Reactor Insulated Sleeping Bag Liner - Image 4](https://m.media-amazon.com/images/I/81dtfNHeOgL.jpg)
![Sea to Summit Reactor Insulated Sleeping Bag Liner - Image 5](https://m.media-amazon.com/images/I/811kbOoY6lL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Amazing. Must have.
*by R***Y on April 13, 2025*

An absolute must for campers. It is insanely comfortable and warm. I am wearing as I write this review. I was shivering in camp last night under my down blanket. I woke up and put this bad boy on and slept like a babe the rest of the night. Love it. I have the breeze one for summer as well.

### ⭐⭐⭐⭐⭐ Warm and comfortable.
*by J***K on February 10, 2026*

Kept me pretty warm with my 32F down sleeping bag in 25F weather. My feet got a little cold but wasn’t bad enough to keep me up all night.

### ⭐⭐⭐⭐⭐ Versatile and effective both as a warmth-increasing line and as a standalone bag
*by J***K on June 28, 2025*

I bought this to store in my camper as a 'just in case' item or spare, and have been very pleased with it. It definitely adds warmth to a main sleeping bag without making one feel clammy inside, and it works nicely as a light bag on warmer nights. The open footbox adds further versatility (you can close it with a drawstring for maximum warmth) too. If you're through-hiking the AT, it's too bulky and heavy to justify taking along, but if you do RV camping or are going out for one or two nights and expect variable weather, this is a very worthwhile addition to your kit.

## Frequently Bought Together

- Sea to Summit Reactor Insulated Sleeping Bag Liner
- HotHands Hand Warmer Value Pack, 10 Count (Pack of 1)

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-09-15*