Nike Flyplate technology made from stiff carbon fiber optimizes your stride while providing support to help minimize fatigue, ease pressure on your Achilles and reduce slipping inside the shoe. The plate acts as an internal rock shield while the outsole helps against punctures. Nike React technology is a lightweight, durable foam that delivers a smooth, responsive ride. The more energy you put into your step, the more you get in return. A combination of hard and sticky rubbers makes up the aggressive sole pattern, giving you durability in heavy strike zones and exceptional traction in natural and urban environments. Rubber teeth in the arch add grip when you’re climbing ropes or covering rugged terrain. Strong fabric wraps the midsole for containment and stability. Solid rubber reinforces the toe. Mesh helps keep your feet cool and dry. Overlays in high-abrasion areas add durability. Heavy-duty laces. Laces stow away to help reduce distractions.