This four-season lightweight portable waterproof sleeping bag is designed for outdoor enthusiasts, suitable for use throughout the year, providing consistent warmth regardless of season. The waterproof fabric effectively prevents moisture penetration, keeping the interior dry and ensuring a comfortable sleep even in damp environments. The soft inner lining and insulating materials provide excellent warmth while maintaining a lightweight and compressible design, making it easy to carry. Its compact design makes it perfect for long treks, camping, and wilderness activities. Whether you’re in cold mountains or damp forests, this sleeping bag ensures a warm and comfortable night’s rest.