This is a CRAZY BOO outerwear item. There is a black stain on the part of the harness that touches the armpit. Please refer to image 7. Other than the armpit area, it is relatively clean with no stains or dirt. The size is M from CRAZY BOO. Thank you for viewing. Please understand that this is a used/pre-owned item, not new or unused, and has been stored at home. Please refrain from purchasing if you are sensitive to such things or have any concerns.