The Rugged Collection uses supple leathers, classic shapes and agricultural-inspired styles, given a distressed and worn-in look. Unisex Chelsea Boot. Suitable for either gender- offered in a size range to include both Men's and Women's sizes. Aged Greasy leather- a smooth, soft leather. It has an oily coating which gives it a waxy feel. The leather is then further distressed in the factory to give it an aged look. Elastic gusset. Classic Heel loop. Dr. Martens air-cushioned sole offers good abrasion and slip resistance.