Please see the photos for each size. For your reference: No size indicated... Length 31cm XL... Length 34cm Other sizes are DS size. All were worn by the same dog! (Toy poodle, a little over 2kg) There are no noticeable stains, but there is a feeling of use. They have been stored at home for a long time, so please refrain from purchasing if you are sensitive. Thank you for looking! Please be sure to read my profile before purchasing.