Rockport Men's Zonecush Plaintoe Chukka Boot- 100% Leather Imported Rubber sole Lightweight rubber provides a durable grip on a variety of surfaces Dual density imeva provides lightweight shock absorption to help reduce foot and leg fatigue Sponge ethylene vinyl acetate footbed conforms to the shape of the foot for a personalized fit Dewix anti-microbial linings help reduce foot odor and wick moisture to help keep the foot dry Comfort system designed to provide lightweight shock absorption.