Therapeutic Dog Hock Supports - FIR-FLEECETherapeutic Dog Hock Supports FIR FLEECE Therapeutic FIR Dog Hock Support (pair) with Therapeutic 280D FIR FLEECE Lining and Adjustable Velcro StrapsBenefits of Vet Therapy FIR FLEECE Dog Hock Support FIR FLEECE natural warming lining generates heat raising tissue temperatures Increases circulation and oxygen levels Improves muscle tone and strength Helps remediate while maintaining mobility our FIR FLEECE is hydrophobic and retains less than 1% water