• PE aluminum film
• Waterproof material: made from pe aluminum film, this sack is designed to be waterproof and moistureproof, ensuring your sleeping bag stays dry in any weather
• Portable drawstring design: the convenient drawstring design allows for easy carrying and storage, making it great for use during outdoor adventures
• Emergency whistle: equipped with an emergency whistle, this sack provides essential protection and a means to signal for help in emergency situations
• Handy small round bag: the small round bag with a handle makes it easy to attach to your backpack or carry by hand, adding to its portability and convenience
• Versatile use: ideal for camping, hiking, and travel, this multifunctional sack is a musthave for any outdoor enthusiast looking for reliable gear