The Arctic Adventure winter boot is a welly with a difference. Designed to keep even the most experienced explorer\'s feet warm in extreme temperatures. These cosy fleece-lined wellingtons have the signature Muck Boot neoprene stretch-fit; keeping warm air in and cold air out whilst helping the boot stay snug to your calves. The lightweight EVA midsole and rubber outsole are a perfect combination of comfort and traction.100% WaterproofFully lined with 5mm neoprene for flexibilityFleece lining for warmthLightweight EVA midsole for added comfortPull-tabs for easy on and offVersatile, general purpose outsoleEstimated boot height 41cm/ 16.5\"Estimated max calf circumference 38cm/ 15.5\"Half sizes order up