Small messenger bag. Waterproof interior and rain resistant exterior. Has a quick release/quick tighten strap to change from a bag secured to your back as you ride or walk to a dropped position you can get into your bag. Loved it when I bike commuted but hasn’t been used in a while. Great preloved condition. High quality bag made in San Francisco. Some wear noted on 2 bottom corners in photos. Light staining on bottom of bag. Otherwise excellent condition. All buckles and zippers still work as they should. No damage noted.