adidas believes that feet deserve a runner's high, too. That's why the Pulseboost HD is sitting on an all-new Boost HD midsole that delivers more stability with the same crazy responsiveness and comfort on any surface. The streets are calling, let's go get it. Boost HD is engineered for more stability with the same best-in-class comfort and responsiveness. Adaptive Traxion gives maximum grip to quickly change direction on any surface—because running should give you the freedom to explore. Adapt Knit adjusts to any foot shape, giving you a personalised fit on the go. New shoes. New tracks. Scan the QR code on Pulseboost HD to unlock an exclusive playlist.