Batman The Dark Knight Rises Muscle Chest Batman Set, Black, Plus

Q: how come I am unable to select a size?

Hello, Thank you for your inquiry! This listing is for size Plus. Plus is designed to fit jacket sizes 46-52, chest up 50-inches and up to 46-inch waist. Additional sizes can be found at the following links: Medium https://www.amazon.com/dp/B006MRNKFW Large https://www.amazon.com/dp/B006MRNMFU X-Large https://www.amazon.com/dp/B006MRNKDY Have a great day!