The Air Max 270 made its grand debut in February 2018 and became an instant classic. Almost a year later . the Nike Air Max 270 'Y2K' sneaker was released on January 1st 2019 . to update the silhouette with a millennium-inspired design. The kids’ version of the Y2K features a stretch mesh upper supported by an inner neoprene sleeve . highlighted by holographic accents at mudguard and quarter panels.