- Filling Material : This sleeping bag liner features no filling material, providing a lightweight option for enhanced comfort. - Import Information : Proudly imported from Taiwan. - Temperature Tolerance : Designed to withstand temperatures as low as 27°F (-15°C), making it suitable for various weather conditions. - Superior Warmth : Constructed with extra-thick, soft, and lightweight fleece, this liner enhances your sleeping bag's warmth by adding up to 27°F, ensuring a restful night's sleep even in chilly weather. - Comfortable Design : The mummy shape offers cozy warmth while allowing freedom of movement. The drawstring hood retains heat, and the spacious foot box design gives your feet room to relax. - Lightweight and Portable : Weighing only 16.6 oz (470 g), this sleeping bag liner is easily packable. It compresses well into the included travel bag for convenient storage in your backpack, luggage, or vehicle. Use Scenarios : 1. Camping Trips : Ideal for outdoor camping, providing an extra layer of warmth during chilly nights. 2. Traveling : Perfect for backpackers seeking a lightweight and compact option that fits snugly in their gear. 3. Home Use : Functions great as an added layer of comfort for sleepovers or extra warmth during cold nights at home. Invest in this sleeping bag liner for unparalleled comfort, warmth, and portability, perfect for adventurers and homebodies alike.