About Our Sleeping Bags, Our Sleeping Bags can be used for 3 seasons.They are designed for 10~20 Degrees Celsius. Moreover, these bags also have a weather-resistant design to keep you warm even in extreme conditions and prevent you from any dampness - this is achieved through double-filled technology.our sleeping bags are designed to ensure that after a tiring day of trekking, hiking, travel or any other exploration you can get a good and relaxing night’s sleep.Each sleeping bag comes with a compression sack with straps, allowing for super convenient storage and easy carry maneuverability.