Nike Air Force 1 Crater Flyknit Color - Wolf Grey Size - 11 The Nike Air Force 1 Crater Flyknit updates classic b-ball style with at least 20% recycled content by weight. Super-airy Flyknit material feels breathable and stretchy around your foot. The speckled sole ups the legendary comfy style that lets you give a little back with every step. Breathable Support Nike Flyknit technology uses strong (yet lightweight) yarns to create fabric that's supportive, stretchy and breathable. Cushioned Comfort Crater foam cushioning, made from a spacey mix of about 12% Nike Grind, feels lightweight and responsive. The hidden Air-Sole unit is designed just the same as the '82 original.