Thank you for showing your interest in Therasock Large White Crew Sock from Therafirm (TG). The Therasock Large White Crew Sock is a product of Therafirm and is thereby made of the highest quality. If you have any questions regarding Therasock Large White Crew Sock or any product in Therafirm (TG), please contact us. Our experienced personnel will answer any questions you have about Therasock Large White Crew Sock. Also, if you are interested in purchasing large quantities of Therasock Large White Crew Sock or any Therafirm (TG), please contact Customer Service.