The Highline boot is insulated and waterproof, with excellent grip, made for all day comfort. The Calve height boot is perfect for those who do not enjoy wearing a full length wellington but do not want to compromise on the quality. * 4mm insu-foam ultra * 5mm POLYOU™ footbed * Underfoot chasis * Superlight technology * Superdri lining * Trailgrip outsole * Comfort rating -20ºc to +20ºc. Grubs Tideline Wellington Boot Black | Griggs