---
product_id: 615451708
title: "Reactor Insulated Sleeping Bag Liner"
brand: "sea to summit"
price: "₨46066"
currency: LKR
in_stock: true
reviews_count: 8
category: "Sea To Summit"
url: https://www.desertcart.lk/products/615451708-reactor-insulated-sleeping-bag-liner
store_origin: LK
region: Sri Lanka
---

# Up to +25°F warmth boost HeiQ Fresh odor control tech Stretchy knitted Thermolite fabric Reactor Insulated Sleeping Bag Liner

**Brand:** sea to summit
**Price:** ₨46066
**Availability:** ✅ In Stock

## Summary

> 🔥 Stay warm, move free, and sleep fresh—your ultimate camping upgrade!

## Quick Answers

- **What is this?** Reactor Insulated Sleeping Bag Liner by sea to summit
- **How much does it cost?** ₨46066 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/615451708-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

- • **Freedom of Movement:** Knitted hollow-core fibers provide unmatched stretch in a mummy-shaped liner.
- • **Lifetime Confidence:** Backed by Sea to Summit’s lifetime guarantee for enduring performance.
- • **Customizable Comfort:** Drawcord footbox opens or closes, syncing seamlessly with Sea to Summit Free-Flow Zip bags.
- • **Odor-Free Adventures:** HeiQ Fresh technology keeps your liner smelling clean even after extended use.
- • **Thermolite Pro Warmth:** Reflects your body heat for a cozy +25°F boost, perfect for chilly nights.

## Overview

The Sea to Summit Reactor Insulated Sleeping Bag Liner uses advanced Thermolite Pro technology with hollow-core fibers and infrared ceramic pigments to reflect body heat, boosting your sleeping bag’s warmth by up to 25°F. Its stretchy knitted fabric ensures freedom of movement, while the adjustable drawcord footbox integrates perfectly with select Sea to Summit sleeping bags. Enhanced with HeiQ Fresh odor control, this mummy-shaped liner offers lasting freshness and is backed by a lifetime guarantee, making it a must-have for serious outdoor enthusiasts.

## Description

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

Review: It worked for me! - First night was in the 20’s f and worked great with my sleep system. I woke up to a small amount of snow and was warm without feeling drafts in my hammock. I use this every time in my sleep system
Review: Great liner for summer months - i’m not keeping this because I need something a little warmer. I’m getting ready to start the Appalachian Trail and I just don’t think this is warm enough for me looking for a warmer insulated liner for my sleeping bag. If I wouldn’t be hiking in the cold, I probably would’ve kept it.

## Features

- thermolite
- Imported
- Insulated sleeping bag liner adds extra warmth and personal hygiene to any sleeping bag.
- Thermolite Pro technology using knitted, hollow-core fibers and absorbing infrared ceramic pigments to reflect your body's heat back to the wearer for enhanced warmth and comfort
- 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
- Knitted fabric provides incredible stretch and freedom of movement in this mummy-shaped liner and works seamlessly with sleeping bags of any shape, Sea to Summit Guarantee is offered for the Lifetime of this product

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CT69SWJP |
| Age Range (Description) | Adult |
| Age Range Description | Adult |
| Best Sellers Rank | #14,109 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 | Spicy Orange |
| Customer Reviews | 4.7 out of 5 stars 245 Reviews |
| Fabric Type | thermolite |
| Fill Material Type | Thermolite |
| Global Trade Identification Number | 09327868158331 |
| Manufacturer | Sea to Summit |
| Material | thermolite |
| Maximum Height Recommendation | 7.08 Feet |
| Occupancy | 1 |
| Shape | Mummy |
| ShellMaterial | thermolite |
| Size | 85 x 31.5 |
| Temperature Rating | Up to 25F increase in sleeping bag warmth |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Sea to Summit
- **Color:** Spicy Orange
- **Occupancy:** 1
- **Shape:** Mummy
- **Seasons:** Winter
- **Temperature Rating:** Up to 25F increase in sleeping bag warmth
- **Age Range (Description):** Adult
- **Sport:** Camping & Hiking
- **Material:** thermolite
- **Fill Material:** Thermolite

## Images

![Reactor Insulated Sleeping Bag Liner - Image 1](https://m.media-amazon.com/images/I/51y1ZEIIHRL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ It worked for me!
*by W***N on January 29, 2026*

First night was in the 20’s f and worked great with my sleep system. I woke up to a small amount of snow and was warm without feeling drafts in my hammock. I use this every time in my sleep system

### ⭐⭐⭐⭐⭐ Great liner for summer months
*by C***R on January 7, 2026*

i’m not keeping this because I need something a little warmer. I’m getting ready to start the Appalachian Trail and I just don’t think this is warm enough for me looking for a warmer insulated liner for my sleeping bag. If I wouldn’t be hiking in the cold, I probably would’ve kept it.

### ⭐⭐⭐⭐⭐ Works great
*by C***6 on January 14, 2026*

Works great. My bag went from adequate to comfortable, with minimal weight added to my pack.

## Frequently Bought Together

- Sea to Summit Reactor Insulated Sleeping Bag Liner
- Sea to Summit Drylite Towel, Lightweight Camping and Travel Towel
- Rainleaf Microfiber Towel Perfect Travel & Gym & Camping Towel. Quick Dry - Super Absorbent - Ultra Compact - Lightweight. Suitable for Trip, Beach, Shower, Backpacking, Pool

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**Shop now:** [https://www.desertcart.lk/products/615451708-reactor-insulated-sleeping-bag-liner](https://www.desertcart.lk/products/615451708-reactor-insulated-sleeping-bag-liner)

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-02-27*