100% cotton Bay-lor University Be-ars Bandana in a retro style. These bandanas clip around the neck of your pet with the attached side release buckle. Measuring around your pets neck, the bandanas are available in the following sizes: 8 inches for our XX-Small, about 12.5 inches for our X-Small, about 15 inches for our Small, about 17.5 for our Medium, about 21 inches for our Large, and about 24 inches for our X-Large.