Approximately 12cm (height) x 24cm (width) x 9cm (depth). Made of nylon, so it's lightweight. A long wallet will fit, so it's suitable for short outings. The strap is long enough to be worn over the shoulder, but not long enough for cross-body wear. It is not removable or adjustable. New with tags, unused, but stored at home, so please refrain from purchasing if you are sensitive to this. The bottom will be folded for shipping.