Grubs Unisex Shoreline 4.0 Black Insulated Rubber Wellies Ankle Boots (Black, UK Footwear Size System, Adult, Men, Numeric, Medium, 13)

SHORELINE 4.0™ is insulated and waterproof, with excellent grip, made for all day comfort. The ankle 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™ - gives all round foot comfort and insulation. 5mm POLYOU™ footbed - provides a soft cushioning for an athletic shoe feel. A million microscopic nitrogen bubbles that insulate the wearer from cold surfaces. UNDERFOOT CHASSIS™ - give a sure footed platform. SUPERLITE® technology - makes this boot 30% lighter than conventional rubber boots, buoyant and extremely comfortable thanks to its' moulded shape. SUPERDRI™ lining - is hard wearing, wicks moister away from the wearer’s foot to prevent a sweaty and uncomfortable feel. It is fungus and rot proof so will not smell like cotton-lined boots. TRAIL-GRIP™ outsole - superior grip on a variety of surfaces, the tread is designed to work with the action of the foot COMFORT RATING - -20ºc to +20ºc.