A sun-protection jacket with a logo is a jacket that has a logo on it and is designed to protect the wearer from the sun's harmful rays. The logo may be printed or embroidered onto the fabric of the jacket and can range from simple designs to complex images. Sun-protection jackets can be made of various materials such as cotton, nylon, polyester, and spandex. They are often lightweight and breathable, making them comfortable to wear in warm weather. Some sun-protection jackets also feature UPF (Ultraviolet Protection Factor) ratings that indicate how much protection they offer against UV rays.