Gul All Purpose Boot 5mm NEW FOR 2011. Designed for All Dinghy sailing / Boating, Jet skiing & Canoeing where a more durable and robust boot is required. Made from liquid skin (durable nylon lined neoprene, used to give a warm comfortable fit). 5MM Dura flex. With adjustable ankle closure and YKK zipped entry, with neoprene gusset back up and reinforced toe and heel areas and hiking protection. Also a hard wearing non-slip sole. Available in UK sizes 4, 5, 6, 7, 8, 9, 10, 11, 12 and 13. PLEASE NOTE IF YOU ARE HALF SIZE OR WIDE FITTING GO UP A SIZE,