This is a model from Columbia's "Arc Dash" series. It's easy to open and close with Velcro. I'm selling it because I haven't used it much. I've used it to carry books and small items, and I haven't used it for camping, so it's in good condition with no shape distortion or stains. Material: The main fabric is processed to provide firmness, making it resistant to shape distortion and allowing for stable storage of your belongings. Features: It has the durability you'd expect from an outdoor brand, and its minimalist design makes it versatile for everyday use, travel, and camping. Storage: In addition to the main pocket, it has an internal pocket for organizing small items and a front pocket for quick access.