I purchased this last year and used it a few times, but I'm selling it because I no longer use it. I will ship it within 24 hours. It's a size L, so it can also hold a 16-inch MacBook Pro. The following is an excerpt from the official website: "You don't always have a lot of luggage." There are many days when all you need is a MacBook or even an iPad. The Thin Pack, an ultra-thin, minimalist-style backpack born from that idea, is finally getting an upgrade! While maintaining its astonishing design with a thickness of only 3.8cm, it has been updated in 17 places. The device storage space features a thick protective pad made of wet material. It protects your devices more securely. Ripstop nylon is used throughout the storage area. It prevents the fabric from tearing. The mesh material of the back pad has also been revised, with a pad that is more resistant to sweat and puts less strain on the body. All zippers have been changed to the world-renowned 【YKK】. The movement has been improved for smoother operation. An "key ring system" has also been newly installed, allowing you to secure an AirTag or keys inside. You can remove it with one touch and use it immediately. Multiple functionalities have been added to the straps. A stabilizer belt that can be secured to the body with German-made Fidlock®. It provides a better fit, making it even more active for intense exercise or cycling. It also has the strength of a car seatbelt. In addition, the internal cushion of the strap has been improved. It also reduces the burden on the shoulders when carrying it. A system for attaching expansion items to the straps has also been newly installed. As the first option item, an AirPods Pro/AirPods holder will be released simultaneously. You can easily take your earphones in and out at hand. New items such as iPhone holders are also scheduled to be released one after another. This is the upgraded version of the standard thin, minimalist bag for MacBooks and iPads.