Today we are getting a first look at the END. x Onitsuka Tiger Colorado 85 “Bluebird.” This collaborative release draws inspiration from its namesake state’s wildlife for its vibrant colorway: Colorado is home to three species of Bluebird whose blue hue is created thanks to pockets of air in their feathers that transforms light as it hits them, only letting blue light escape. As a nod to this evolutionary adaptation, the shoe features reflective 3M detailing, with a single white feather print at the heel as a finishing touch. The END. x Onitsuka Tiger Colorado 85 “Bluebird” is releasing Thursday March 5 on the END. website.