Rockport First AdvantageDesigned to perform, the Rockport First Advantage military boots provides both comfort and durability. Each style from this line utilizes two proven performance technologies. Its adiPRENE technology absorbs shock while providing energy rebound. This helps reduce fatigue. Secondly, its truWALK outsole ensures a smooth stride. Its beveled heel reduces impact and cuts down on heel strike. Reducing fatigue levels, the First Advantage styles outperform other similarly styled boots. Due to the side zip, these eight-inch and six-inch styles are easy to put on and take off. The waterproof boots will keep feet dry in a number of climates and environments.