Rockport Men's Northfield 100% Synthetic Full grain leather upper with tonal stitching and plain toe for a clean, versatile style Hydro Shield waterproofing is tanned into the leather along with a special seam-sealant keeps your feet dry in wet weather Fully cushioned collar with a traditional lace-up closure offers a supportive, customized fit Removable, shock-absorbent underfoot cushioning with Kinetic Air Circulator design helps keep foot cool and dry Rubber outsole with lug design provides durability and grip on a variety of surfaces for maximum walkability