The Tactical Research TR393 Men’s FLYWEIGHT Lightweight Hot Weather was intended for soldiers looking for an ultra lightweight boot for garrison or light field duty assignments. This boot features hot weather construction with an unlined upper and breatheable nylon Cordura upper. 100% genuine cowhide provides durability and a sharp uniform appearance. A lightweight EVA midsole provides good cushioning on the undersole areas while shaving off ounces compared to polyurethane. This boot is highly breathable and well ventilated boot that will keep your feet cool, dry and comfortable in all environments.