The Puppia Soft Harness is our most popular Puppia product. The chest measurement is the most important - if your pup is borderline, go a size up. Also take into account his/her fluff factor. Extremely fluffy dogs are more comfortable with a roomier harness. Super soft harness. Comfortable neck. Re-sizable chest belt. Easy snap on-off buckle. Puppia rubber label. XS-XXL.Comfortable, Cool Polyester air-mesh material. D-ring on back for leash. Machine washable, gentle cycle, air dry. Very gentle on the neck.