adidas Ultra Boost 4.0 Ash Pearl

The adidas Ultra Boost 4.0 Ash Pearl is the fourth iteration of the adidas Ultra Boost running shoe, and offers subtle enhancements to both the performance and design of the original. The upper of this shoe is constructed from a Primeknit material with a rubber overlay, and the words "ultra boost" are embossed on the heel. The shoe employs a distinctive TPU heel counter and secure lacing system. But perhaps the most standout feature of this shoe is its full-length Boost midsole. Boost is adidas' proprietary cushioning technology made of thousands of thermoplastic polyurethane pellets. What our experts agree is another significant aspect of the adidas Ultra Boost 4.0 Ash Pearl is the Continental rubber compound of the outsole that provides top-notch traction and durability on any number of surfaces. These shoes released for the first time on January 1, 2018, with a price tag of $180.