With a 5mm insulating neoprene lining, the Arxus Unisex Primo Nord LW Wellington is a durable yet lightweight boot that will keep your feet warm in temperatures as low as -20c. Combined with a 2mm air cell lining, the boot regulates temperature to ensure comfort in all weathers. For easy accessibility, the boot has a half-length Riri zip at the back and an all-round locking strap. Primo Nord LW Wellington Boot Features Arxus Primo Nord LW Wellington Boot Lightweight 100% natural rubber 5mm neoprene lining combined with a 2mm \'air cell\' lining Air cell is a thermo-regulating layer between the body and the neoprene lining The boot shaft is made of a strong \'rip-stop\' fabric combined with waterproof neoprene Half-length Riri zip at the back Leather top edge piping All-round locking strap X-pattern sole constructed from 6 different technical layers 5mm removable EVA felt insole increases shock absorption Two-year guarantee Alan Paine\'s Ref. MPN: 1027Colour: OliveSizes: UK 4.5-12PM Ref. 1606119