Silky ultralight sack and zippered envelope design for versatile sleep and rest Easy to store and carry: The silky ultralight sack is lightweight and folds compactly, so it takes up minimal space in luggage or a backpack. Comfortable materials: The fleece sleeve bag liner is made of polyester fiber and polar fleece for a soft, warm inner surface. Machine washable and quick drying: Polyester and polar fleece construction lets you wash the liner in a machine and dry it quickly between trips. Zippered envelope function: The sleeping bag uses an envelope-style design with a zipper. Use it zipped as a compact sleeping bag, or unzip and unfold it to serve as a blanket or picnic rug. Multi-environment use: Designed for travel flexibility, this camping sheet is suitable for business trips, general travel, outdoor camping, family outings, and similar situations. Practical benefits Saves space and reduces packing weight for travel and outdoor activities. Easy to clean and maintain for repeated use. Versatile use modes reduce the need to pack separate blankets or picnic mats. Typical use scenarios Business travel: Carry in your luggage for hotels or overnight stays where extra bedding may be needed. Outdoor camping and backpacking: Lightweight, quick-drying liner adds comfort and warmth in a tent or bivy. Family outings and picnics: Unzip to use as a blanket or picnic rug for parks and beach trips. Materials and care Material: Polyester fiber with polar fleece inner surface. Care: Machine washable; dries quickly. What it solves Reduces bulk while providing a soft, washable sleeping surface. Converts between sleeping bag and blanket for more flexible use across travel, camping, and family activities.