The new sneakers from Royal Elastics are the King for men and the Queen for women—those are the names of the styles—and the cutting-edge brand just opened a flagship store to show them off. Royal onMain also sells an eclectic collection of shoe-related merchandise—for example, AndyWarhol watches and jeans in honor of the Royal Elastics shoes with prints by the great pop artist. 2427 Main St., Santa Monica, 310.573.8810.