Joysun Envelope Type/rectangle Style Sleeping Bag blue SL004 Polyester Size: 30cm*190cm*75cm (hood length)*(body length)*(width) Standard adult sleeping bag designed for size and weight-conscious hikers Polyester hex ripstop shell; polyester taffeta liner Cold weather, zero degree Fahrenheit mummy-style sleeping bag with synthetic Slumberloft fill Applicable seasons:autumn and Winter period