The leather upper on this ultra comfortable Grabbers 6In. Fastener Work Boot resists oil, water and abrasion to keep your feet comfortable and good-looking day after day. Taibrelle® nylon fabric lining wicks away moisture, while removable EVA midsoles with sponge rubber heel wedges lighten every step you take. Sure Grip rubber outsoles help keep you from slipping. Since these boots are completely non-metallic, they won't set off any metal-detecting devices. An ultra comfortable, practical choice.