Grubs RIDELINE 5.0™ is a full height riding wellington, designed specifically for the equestrian user who want a boot that will take them from yard to stirrup. 5MM INSUFOAM-ULTRA™ neoprene, featuring a rubber patch on the inner calf and ankle height rubber shell provides comfort and warmth. OUTLINE™ OUTSOLE - GRIP-GRID pad grips the stirrup for better heel position and greater control. HARD TOE TECHNOLOGY and - Unique HARD TOE™ TECHNOLOGY AND REINFORCED HEEL - reinforced toecap and ankle protects the wearer’s during daily activities. KICK SPUR - Designed to keep spurs in place and help wearer remove the boot with ease Comfort Rating -20º C to 20º Moisture wicking linings use thousands of fibre loops that cosset the foot and wick away moisture keeping the wearer dry and comfortable. Combined with 5.0 INSU-FOAM ULTRA™ to provide an unequalled comfort range without sweat and heat build up. HARD TOE™ TECHNOLOGY Self-hardening layers of epoxy impregnated material to stiffen the toe of our boots to give a protective toe that can take the same sort of knocks as high-end mountaineering footwear. SIZING: boot height and calve widths: UK SIZE BOOT HEIGHT (mm on leg) CALVE WIDTH (circumference in mm) UK4 390mm 400mm UK5 395mm 410mm UK6 400mm 410mm UK7 405mm 420mm UK8 410mm 420mm