This is a PC case from Aer. It's for 13-inch laptops, but a Macbook Pro 14-inch M4 fits inside. I'm selling it because my needs changed after I bought it. It's unused, only tried on. Here's the official description: A durable and minimalist 13-inch PC case. Aer is a bag brand based in the San Francisco Bay Area. They design for professionals, athletes, and travelers who navigate the ever-changing city. Their goal is to create high-quality bags and accessories that meet the needs of urban life and boast high durability. The "WORK COLLECTION" offers bags for professionals who use mobile gadgets, organizing and protecting mobile accessories so that work can be done anywhere, anytime. The PC case, made from the same material as the bags and fitting up to 13 inches, is robust and stylish. Manufacturer Model Number: AER-21029 Size Information: Body: H27 x W37 x D4cm Weight: Approx. 450g Material: Cordura Ballistic Nylon (1680 denier) Country of Origin: Made in China.