--- product_id: 269374484 title: "Thermolite Reactor Extreme Sleeping Bag Liner - Red, 90 x 210 Centimeter" brand: "sea to summit" price: "KD 64.87" currency: KWD in_stock: true url: https://www.desertcart.com.kw/products/269374484-thermolite-reactor-extreme-sleeping-bag-liner-red-90-x-210 store_origin: KW region: Kuwait --- # Boosts warmth by 25°F/15°C Mummy-shape with drawstring hood for snug fit 110g/m² Thermolite fabric for superior insulation Thermolite Reactor Extreme Sleeping Bag Liner - Red, 90 x 210 Centimeter **Brand:** sea to summit **Price:** KD 64.87 **Availability:** ✅ In Stock ## Summary > 🔥 Sleep warmer, dream bigger with Sea to Summit Thermolite Reactor Extreme! ## Quick Answers - **What is this?** Thermolite Reactor Extreme Sleeping Bag Liner - Red, 90 x 210 Centimeter by sea to summit - **How much does it cost?** KD 64.87 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/269374484-thermolite-reactor-extreme-sleeping-bag-liner-red-90-x-210) ## 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 - • **Effortless Care:** Machine washable with no special detergents—ready for your next adventure in minutes. - • **Warmth Amplified:** Elevate your camping comfort with up to 25°F extra warmth—never compromise on cozy nights. - • **Ergonomic Mummy Design:** Tailored mummy shape with adjustable hood ensures a perfect, heat-trapping fit for restless sleepers. - • **Lightweight & Breathable:** Stay warm without bulk—ultra-light 0.88 lbs fabric that breathes, keeping you fresh all night. - • **Premium Thermolite Fabric:** Experience the plush stretch and superior insulation of 110g/m² Thermolite, outperforming standard liners. ## Overview The Sea to Summit Thermolite Reactor Extreme Sleeping Bag Liner is a high-performance, mummy-shaped liner crafted from 110g/m² Thermolite fabric that boosts your sleeping bag’s warmth by up to 25°F (15°C). Lightweight and breathable, it features a stretchy knit design with a drawstring hood for a snug fit, perfect for cold-weather camping. Easy to care for and durable, it’s the ultimate upgrade for millennial adventurers seeking cozy, hassle-free outdoor sleep. ## Description Thermolite Reactor Extreme Sleeping Bag Liner - Red, 90 x 210 Centimeter ## Features - Traps insulating air to increase warmth of a sleeping bag by up to 25°F / 15°C - Stretchy, Thermolite fabric is incredibly comfortable. - 110g/m² fabric is warmer than the 80g/m² Thermolite used in the standard Reactor. - Technical mummy-shape with drawstring hood. - Easy care – machine wash with no special soap needed. Avoid fabric softeners and dryer sheets. ## Technical Specifications | Specification | Value | |---------------|-------| | Age Range | Adult | | Color | Red | | Size | 90 x 120 cm cm | | Style | Sleeping Bag Liner | | Material Composition | Outer fabric material: 100% polyester | | Height | 0.4 inches | | Length | 83 inches | | Weight | 0.88 Pounds | | Shape | Mummy | | Material Type | Thermolite® | | Maximum Height Recommendation | 210 Centimeters | | Number of Items | 1 | | Outer Material | Nylon | | Season | Winter | | Features | Reactor Extreme | | Usage | hiking | | Sport | Camping & hiking | | Batteries Included? | No | | Brand | Sea to Summit | | fill material type | Thermolite | | Department | Unisex | | Manufacturer | Sea to Summit | | Item model number | AREACTEX | | Product Dimensions | 210.82 x 88.9 x 1.02 cm; 399.16 g | | ASIN | B003BIT004 | ## Product Details - **Brand:** Sea to Summit - **Colour:** Red - **Occupancy:** 1 Person - **Shape:** Mummy - **Seasons:** Winter ## Images ![Thermolite Reactor Extreme Sleeping Bag Liner - Red, 90 x 210 Centimeter - Image 1](https://m.media-amazon.com/images/I/71lTNobV6sL.jpg) ![Thermolite Reactor Extreme Sleeping Bag Liner - Red, 90 x 210 Centimeter - Image 2](https://m.media-amazon.com/images/I/81K1HPK6MeL.jpg) ![Thermolite Reactor Extreme Sleeping Bag Liner - Red, 90 x 210 Centimeter - Image 3](https://m.media-amazon.com/images/I/8160Ljdc0TL.jpg) ![Thermolite Reactor Extreme Sleeping Bag Liner - Red, 90 x 210 Centimeter - Image 4](https://m.media-amazon.com/images/I/81FUwt0pDZL.jpg) ![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. ## Frequently Bought Together - Sea to Summit Thermolite Reactor Extreme Sleeping Bag Liner - Red, 90 x 210 Centimeter - Squeeze Water Filtration System --- ## 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.com.kw/products/269374484-thermolite-reactor-extreme-sleeping-bag-liner-red-90-x-210](https://www.desertcart.com.kw/products/269374484-thermolite-reactor-extreme-sleeping-bag-liner-red-90-x-210) --- *Product available on Desertcart Kuwait* *Store origin: KW* *Last updated: 2026-05-16*