Celebrate and support your team during the woof cup <3 Snap-on Bandana Before selecting a size, measure your pup’s neck carefully & make sure to account for the fluff. if you are unsure of the sizing we recommend you to size up if the neck measurement is too close to the snap placement. s | up to 14" | snaps at 13" m | up to 18" | snaps at 17" l | up to 22" | snaps at 21" much love, woof story and co.