I bought a horse size for my arm 16.3 THICK OTTB to prevent the rug from running over his shoulders. He is a roller skater and very picky about blankets. As a result, he washes his hair. It has prevented chafing and is made of a good material that he wears on a daily basis with no problems. However, it works great. It barely fit him and he's a blanket 81 and a big, big boy with a big heart. Velcro hardly touches the band, so long.