Bring out the tube tops and rhinestones â these adidas Astir Shoes are all about the extravagance of the 2000s. The foundation is built off of a running silhouette, but the pops of colour sprinkled throughout can almost distract you from that fact. We did say almost, though, because there's no mistaking the dynamic lines and performance-inspired outsole, no matter how much attitude is layered on top.