Caterpillar Men's Electric Casual Comfort Lace Up Oxfords Full Grain Leather Simple, yet durable, the CAT Electric Black Casual Oxford P74031 is made from durable full grain leather on strobel and cement construction ensuring you have a flexible shoe that gives you maximum range of mobility Lined with nylon mesh and an ortholite EVA sock liner, this boot will keep you and your feet comfortable allowing for all day wear This oxford will have you looking and feeling your best