I bought this from Hot Topic like 15 years ago and wore it maybe once.. It's a men's/unisex size S. The chest measures about 17.5", the length is about 24", and those measurements were taken while the item was laying flat. The material has some stretch. 🦇 Thank you for checking out my listing! 🦇 🦇 Please ask all questions prior to purchasing 🦇 🦇 All sales are final 🦇