Show off your San Francisco 49ers pride in this Christian McCaffrey Big & Tall Baseball Button-Up Shirt from Fanatics. This button-up shirt features a full-button front and rounded hem for freedom of movement and ease of styling. Made from 100% polyester, this shirt is lightweight and breathable, making it ideal for game day or any day. This button-up is a touchdown for any diehard 49ers fan looking to rep their favorite player and team in style.