Waterproof and Special Design - No need to use any waterproof spray treatment. Designed to prevent dampness, reduce humidity, condensation and sweating.Keeps warm and prevents humidity even in extreme weather conditions. Sleeping bag can be zipped open and used as a blanketHigh-quality fabric, environmentally friendly, efficient thermal insulation, good breathability, light weightThe hat is thickened and padded for added comfort; with adjustable shoulder straps to keep your head from getting caught in the wind or cold for better warmthSpecification:Name: Four Seasons Warm Cotton Sleeping BagSize: (190+30)*75cmColor: green, blueWeight: 2kg