Size 26.5-27.0 cm. In the fifth image, the seam is torn. It's just the outer fabric, and there's another layer of fabric inside, as well as an inner lining, so it doesn't seem like it would get wet immediately. The BOA system tightens when turned right and loosens when turned left. No returns or exchanges. Please understand that the price includes shipping, so I'm not expecting to offer much of a discount.