This is a backpack for Penny skateboards. It's a slightly smaller size, but has a lot of storage and is easy to use. Thank you. The following is quoted from the manufacturer's information: There are small storage pockets on the outside and inside of the bag, which are convenient for storing small items. There is also a pocket for smartphones. Inside the bag, there is a storage space for a 15-inch laptop, a dedicated iPad holder, and the bag itself can easily hold A4-size files, as well as T-shirts and hats.