EUC Name Reebok Crossfit Nano 6.0 Green Black Colorway Green/Black Release Date Mar. 17, 2015 Style Code BS5414 Add innovation to the much-loved list in this reebok cross fit nano 6.0. This update's re-engineered anatomical design makes for a more locked-in stability that functions flawlessly through woods. Plus, the precision details like the textured rope pro+ shank let you tackle cross fit-specific activities with confidence. A kevlar-infused upper ratchets up the durability for one unforgettable shoe.