The Sidi Sport Rain Boots is a mid height boot. o Tepor membrane to add a water resistant yet breathable barrier between the elements and the rider?s feet. o Lorica outer construction. o Perforated Teflon treated nylon lining. o Composite inner sole. o Removable arch support. o Internal heel protection. o Internal ankle protection. o Internal toe protection. o Zipper and Velcro closure system. o Non-slip lug sole. o Lorica toe shift pad. o Double stitched in all high stress areas. o Reflective heel panel. o Thousand air cell padded shin area. o Quilted calf area for comfort. o Sizes 48 and larger uses Champion Air Sole