Pro X is for players who want their strings to work with them, not against them. Developed with input from touring pros, it's the firmest string in the Diadem lineup — and that stiffness is the point. You get an explosive, immediate response off the string bed that softer polys simply can't match.
The hexagonal cross section adds bite on every swing, giving you enough spin production to keep aggressive shots in the court. This isn't a comfort string. It's a performance string for players with fast, full swings who want to feel exactly what's happening at contact.
If Flash is too soft for your game, Pro X is the next step up.
We ship all orders from our warehouse in Aalborg, Denmark 🇩🇰. All orders are processed and shipped within one business day to ensure fast delivery to our customers across Europe. 🚚✨