Maximum support mile after mile... These Postal boots are built with a true athletic construction for lightweight durability and flexibility. Men's Reebok Chukka boot are a favorite among USPS employees and Letter Carriers because of their comfortable and supportive fit, made from soft grain leather with drilex moisture absorbant linings. The postal approved Chukka boots provide extra comfort with an oil, chemical, and slip resistant polyurethane crosstrainer sole.