---
product_id: 621873182
title: "Sea to Summit Reactor Insulated Sleeping Bag Liner"
brand: "sea to summit"
price: "€ 220.46"
currency: EUR
in_stock: true
category: "Sea To Summit"
url: https://www.desertcart.gr/products/621873182-sea-to-summit-reactor-insulated-sleeping-bag-liner
store_origin: GR
region: Greece
---

# 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:** € 220.46
**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?** € 220.46 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/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) | Insulated Thermolite sleeping bag liner adds warmth and improves hygiene in cold-weather camping : Sports & Outdoors

## 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 | #6,676 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #2 in Camping Sleeping Bag Liners |
| Brand Name | Sea to Summit |
| Closure Type | Drawstring |
| Color | white |
| Customer Reviews | 4.7 4.7 out of 5 stars (53) |
| 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 Highlight | Insulated Thermolite sleeping bag liner adds warmth and improves hygiene in cold-weather camping |
| 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:** white
- **Fill Material:** Thermolite
- **Material:** thermolite
- **Occupancy:** 1
- **Seasons:** 3 Seasons
- **Shape:** Mummy
- **Special Feature:** Improved ventilation and mobility
- **Temperature Rating:** Below 8 degrees centigrade

## Images

![Sea to Summit Reactor Insulated Sleeping Bag Liner - Image 1](https://m.media-amazon.com/images/I/51TmLHCmqPL.jpg)

## Available Options

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

## 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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**Shop now:** [https://www.desertcart.gr/products/621873182-sea-to-summit-reactor-insulated-sleeping-bag-liner](https://www.desertcart.gr/products/621873182-sea-to-summit-reactor-insulated-sleeping-bag-liner)

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-11-03*