DESC: Fully-padded, fleece-lined vest provides superior comfort and safety Unique, shock-absorbing design protects pets during sudden stops Fits pets from 45-85 lbs, such as Boxer, Collie, Retrievers Integrates with vehicle's seat belt tensioning device to provide range of motion while traveling, but locks during sudden stops Use of a vehicle safety harness improves safety by reducing potential distractions for the driver