adidas - X Crazyfast.4 Firm Ground. Color Core Black/Core Black/Core Black. Low Stock. On sale for $55.61. MSRP $60.00.. 3 left in stockBrand NameadidasProduct NameX Crazyfast.4 Firm GroundGenderUnisexColorCore Black/Core Black/Core BlackPrice$55.61MSRP: $60.00Rating