Sculpted to hit crazy speeds. Flashing chevron-style graphics, these adidas football boots borrow their lightweight look from their record-breaking predecessor, the F50 Adizero Crazylight. But below the surface they're Xs all the way, with a semi-translucent Aeropacity Speedskin upper and featherweight Lightstrike cushioning. Underneath, a specialist indoor outsole gives you dizzying acceleration on flat surfaces. X Crazyfast Injection.1 Indoor Soccer Shoes