22” pit to pit 26” long pit to end of sleeve 17” Stay warm and comfortable in any weather with the USB Electric Heating Jacket. This jacket features 8 heated zones with dual-switch for maximum warmth and coverage. The jacket offers 3-level heating modes. YOU NEED A POWER PACK FOR THUS JACKET. NOT INCLUDED. I bought two for my granddaughter for her horseback riding because she does not like a heavy coat unfortunately it came towards the end of the season so she never wore it. It does heat up. It’s not real heavy and great if you don’t like a heavy coat but want to stay warm.