For dogs with sensitive skin, we offer micro-fleece lining on the inside of the collars. The soft and gentle material wraps completely around the webbing core, leaving no exposed nylon that could irritate your dog's neck. The micro-fleece also provides a slightly padded interior that will protect even the most sensitive neck. Available in fun colors to coordinate with your collar fabric. Please note, fleece lining does not cover the entire collar, parts such as buckle, hardware are exposed. Only nylon webbing is lined.