Designed for postal workers, this waterproof boot is ideal for those who spend most of their day on their feet while exposed to inclement weather. The GORE-TEX fabric keeps water out on wet days while keeping the boot breathable for warm conditions. The MIL-33 wicking lining and the 3-bar knit GORE-TEX bootie provide additional layers of moisture control inside of the boot. The removable PI-1000 shock eliminator heel cushion makes it easy to stay on your feet all day, and the lightweight design helps you move as fast as you need without pulling extra weight. Made in the USA, these boots are approved by the U.S. Postal Service.