Brand new, never worn. US Men's Size 9.5 From Nike's website: Built for special operators and elite outdoor athletes, the Nike React SFB Carbon packs the durability, support and traction of a tactical boot into a rugged shoe. The full-length carbon plate helps optimize your stride, while responsive Nike React cushioning provides comfort for the long haul. Aggressive tread gives you excellent traction wherever your mission or adventure takes you. Stable Structure 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. Comfort with Energy Return 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. Serious Traction 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. Reinforced Support Strong fabric wraps the midsole for containment and stability. Solid rubber reinforces the toe. More Benefits Mesh helps keep your feet cool and dry. Overlays in high-abrasion areas add durability. Heavy-duty laces.