We believe 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 Boost HD is engineered for more stability with the same best-in-class comfort and responsiveness Adaptive Traxion Adaptive Traxion gives maximum grip to quickly change direction on any surface-because running should give you the freedom to explore Adapt Knit Adapt Knit adjusts to any foot shape, giving you a personalized fit on the go Boost Playlists New shoes. New tracks. Scan the QR code on Pulseboost HD to unlock an exclusive playlist Regular fit Lace closure Adaptive knit textile upper with non-stretch zones for forefoot and midfoot support Textile lining; Continental(TM) Rubber outsole for extraordinary traction in wet and dry conditions High-density Boost for a responsive and stable feel Sock-like construction hugs the foot Scan the QR code to unlock an exclusive running playlist Weight: 12 ounces (size 9) Midsole drop: 8 mm (heel: 18 mm, forefoot: 10 mm) Reflective forefoot stability insert for lateral support Imported Product color: Core White / Grey One / Grey Two Product code: FU7335