Product details:

A feature-laden workhorse insole, designed for those looking for anti-fatigue, vibration dampening, ultra support and even weight distribution to fight fatigue. The carbon support tray, metatarsal pad, and the deep heel cup is perfect for the job site and careers where you're on your feet and carrying more than your body weight over the course of the day. Examples of the environment this insole is designed for include: construction, land development, road crews roofing, airport baggage transporters/crews, electrical service, manufacturing, and distribution centers.Foot Strike Pads maximizes shock absorption
Carbon Fiber External Heel and Arch Support
Extra deep heel cup helps cushion the foot naturally
Metatarsal Support