Non-metallic Light and flexible cement construction Fiberglass shank 5 Inches in height Comfort Track footbed Rocky Rebound EVA Midsole for Shock Absorption 6mm oval laces for more secure lacing The Rocky Code Blue collection features a sleek athletic design and incorporates innovative materials to make a durable shoe that offers all-day comfort where you need it the most. This non-metallic public service shoe is constructed with a nubuck upper with TPU overlays, soft comfort collar lining, and a breathable mesh tongue. This shoes cement construction makes it light and flexible and its oil and slip resistant rubber outsole with a wider stance allows you perform in many environments without hesitation. Experience comfort in every step with our patented Comfort Tracks footbed. This combined with our Rocky Rebound EVA midsole and a fiberglass shank for added stability allows you to confidently go about your day in comfort. This shoe also features a KulKote thermal regulating lining, which helps regulate your body tempter providing a more comfortable experience. 6mm oval laces give you a more secure fit and a high gloss finish gives this innovative shoe a professional look. If you're looking for a shoe that offers an athletic appeal that is lighter, more flexible, and durable that offers all-day comfort the Code Blue collection is perfect for you.