All bandanas are 100% cotton fabric and are machine washable. These bandanas are hand cut and sewn with care. Our bananas style is over the collar, conveniently sliding over your pets collar. Pet bandannas can be personalized with your pet’s name or without if you prefer. Personalization is done with a vinyl transfer that is heat pressed onto the bandana. When placing your order, please add a note at check out with your pet’s name. Sizing will vary based upon the style of the selected bandana. Slip- on over the collar bandanas fit over a ~ 1 inch wide collar. Please see sizing charts & personalization guidelines to ensure you pet receives the best fit!