This is a Patagonia Guidewater Sling. I purchased it new from the official store and have used it about 4 or 5 times. While there is some wear and tear, there are no noticeable scratches or stains. There are no issues with the functionality of the zippers, etc. Please understand that this is a used item that has been used outdoors, and only purchase if you are comfortable with that. It can be worn on either the right or left shoulder and is a lightweight sling-style pack with waterproof capabilities, allowing it to be submerged in water. Capacity is 15 liters. Feel free to comment with any questions.