Designed for adults up to 1.8 meters tall, the BLACKDOG Outdoor Camping Sleeping Bag features high-quality cotton filling free from harmful chemicals. Suitable for spring, autumn, summer, and winter, it maintains comfort within a temperature range of 5℃ to 0℃. This versatile, lightweight sleeping bag can be used individually or combined as a double, making it ideal for backpacking, hiking, and travel and it offers reliable performance across all seasons.