ENHANCED COMFORT: The Synchron 2.5 is updated with a softer heel collar, providing a more luxurious on-foot feel and increased comfort, perfect for long training sessions.,SIZE RECOMMENDATION: For the best fit, we recommend sizing up a full size compared to your regular size.,UPDATED DESIGN: Featuring a refreshed upper with sleek, glue print overlays, the Synchron 2.5 offers a more streamlined and modern aesthetic, making it as stylish as it is functional.,DURABLE CONSTRUCTION: The resilience of the outsole has been enhanced by increasing rubber coverage and protecting the exposed Fulcrum, ensuring the shoe withstands the rigors of daily training and extends its wearability.,HIVO: Available in both medium width and HiVo (Wide). More than just “wide,” HiVo provides a higher volume upper to accommodate thicker or broader feet, and feet with common problems like bunions, calluses and corns.