--- product_id: 285804118 title: "Sea to Summit Reactor Insulated Sleeping Bag Liner" brand: "sea to summit" price: "211609CFA" currency: XOF in_stock: true reviews_count: 5 url: https://www.desertcart.sn/products/285804118-sea-to-summit-reactor-insulated-sleeping-bag-liner store_origin: SN region: Senegal --- # Packs into tiny 8x13cm sack Adds up to 15°F warmth Mummy shape with box foot Sea to Summit Reactor Insulated Sleeping Bag Liner **Brand:** sea to summit **Price:** 211609CFA **Availability:** ✅ In Stock ## Summary > 🔥 Sleep warmer, pack lighter, adventure farther! ## Quick Answers - **What is this?** Sea to Summit Reactor Insulated Sleeping Bag Liner by sea to summit - **How much does it cost?** 211609CFA 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/285804118-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 - • **Breathable Comfort:** Advanced Thermolite fabric keeps you cozy without overheating or irritation - • **Ergonomic Mummy Design:** Snug fit with box foot and drawcord hood locks in warmth all night - • **Thermolite Warmth Boost:** Super-light hollow core fiber adds serious heat without bulk - • **Ultra-Compact Packability:** Stows away in a palm-sized Sn240™ Cordura sack for effortless travel - • **Trusted Quality & Durability:** Sea to Summit’s premium craftsmanship ensures long-lasting performance ## Overview The Sea to Summit Reactor Insulated Sleeping Bag Liner uses cutting-edge Thermolite hollow core fiber to add up to 15°F of warmth while remaining ultra-light and breathable. Its mummy shape with a box foot and drawcord hood maximizes heat retention, and it packs down into a compact 8 x 13 cm Sn240™ Siliconised Cordura sack—perfect for minimalist travelers and serious campers seeking premium comfort and durability. ## Description Our best selling sleeping bag liner! The “Reactor” is made from the lightest weight Thermolite, that DuPont has yet approved. Thermolite is a hollow core fiber that provides extraordinary warmth for its weight and remains extremely breathable. Adds up to 15 degrees of warmth to a sleeping bag or, used alone, is the ideal warm weather bag. Review: l'ho provato ma a temperature più alte di quanto previsto, ma tiene più caldo di quanto si possa pensare. è molto leggero e appare sottilissimo, ma la fibra cava con cui è fatto lo rende molto performante. Sea To Summit è una certezza, il prodotto si paga, ma la qualità è eccellente. oltretutto è molto morbido, non dà fastidio sulla pelle e non irrita le parti intime, cosa molto importante per me che dormo nudo Review: Hafif, yer kaplamıyor ve işini görecek gibi duruyor. Sea To Summit kalitesi.. ## Features - Lighter weight, more packable than fleece - Adds warmth to a sleeping bag - Mummy shape with a box foot - Draw cord hood with mini cord lock - Colour of liner is black.Packs into its own 8 x 13cm / 3" x 5" Sn240TM Siliconised CorduraR stuff sack ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000NQQ4VK | | Additional Features | Insulated, Lightweight, Compact | | Age Range Description | Adult | | Best Sellers Rank | #40,584 in Sporting Goods ( See Top 100 in Sporting Goods ) #31 in Camping Sleeping Bag Liners | | Brand Name | Sea to Summit | | Closure Type | Drawstring | | Color | One Color | | Customer Reviews | 4.5 4.5 out of 5 stars (677) | | Fabric Type | thermolite | | Fill Material Type | Polyester | | Global Trade Identification Number | 09327868000197 | | Item Dimensions L x W | 83L x 35W centimeters | | Item Weight | 0.54 Pounds | | Manufacturer | Sea to Summit | | Manufacturer Part Number | 119 | | Material | Polyester | | Maximum Height Recommendation | 210 Centimeters | | Model Number | 119 | | Occupancy | 1 Person | | Seasons | 3 Seasons | | Shape | Mummy | | ShellMaterial | Nylon | | Size | One Size | | Sport Type | Camping & Hiking | | Temperature Rating | broadband | | Thermal Resistance | 8 Watts per Meter per Degree Celsius | | UPC | 856605160317 698997377047 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Sea to Summit - **Colour:** One Color - **Occupancy:** 1 Person - **Seasons:** 3 Seasons - **Shape:** Mummy ## Images ![Sea to Summit Reactor Insulated Sleeping Bag Liner - Image 1](https://m.media-amazon.com/images/I/71arKk+AobL.jpg) ![Sea to Summit Reactor Insulated Sleeping Bag Liner - Image 2](https://m.media-amazon.com/images/I/816IPczixRL.jpg) ![Sea to Summit Reactor Insulated Sleeping Bag Liner - Image 3](https://m.media-amazon.com/images/I/81o9v1euYbL.jpg) ![Sea to Summit Reactor Insulated Sleeping Bag Liner - Image 4](https://m.media-amazon.com/images/I/81CUVUFGrOL.jpg) ![Sea to Summit Reactor Insulated Sleeping Bag Liner - Image 5](https://m.media-amazon.com/images/I/91j4t+R2WBL.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by Q***À on 28 October 2020* l'ho provato ma a temperature più alte di quanto previsto, ma tiene più caldo di quanto si possa pensare. è molto leggero e appare sottilissimo, ma la fibra cava con cui è fatto lo rende molto performante. Sea To Summit è una certezza, il prodotto si paga, ma la qualità è eccellente. oltretutto è molto morbido, non dà fastidio sulla pelle e non irrita le parti intime, cosa molto importante per me che dormo nudo ### ⭐⭐⭐⭐⭐ Review *by A***R on 12 May 2024* Hafif, yer kaplamıyor ve işini görecek gibi duruyor. Sea To Summit kalitesi.. ### ⭐⭐⭐⭐⭐ Review *by W***5 on 15 December 2025* I use this with a 2/3 season sleeping bag and it is very effective! It's enabled me to spend the night in negative temperatures. I particularly like the fact that it enables me to wash the sleeping bag less often (drying it is difficult as I can't use a tumble dryer). It is also large enough for me to pull it over my head (I'm 5 foot 7/1.71 meter tall). It dries really quickly too and I've been able to leave it in the tumble dryer for a short while to accelerate drying. Lastly it is very small once packed and extremely lightweight. Expensive but worth its price. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sn/products/285804118-sea-to-summit-reactor-insulated-sleeping-bag-liner](https://www.desertcart.sn/products/285804118-sea-to-summit-reactor-insulated-sleeping-bag-liner) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-07-07*