Pro X

The Diadem Pro X is a performance polyester string built for players who want serious pop and response from their string bed. It sits at the top of the Diadem string lineup as the firmest, most powerful option they make — and it was developed with input from professional tennis players, so there's genuine expertise behind its design.

The Pro X features a hexagonal cross-section, which isn't just a cosmetic choice. Those edges grip the ball and help generate spin, while the stiff poly construction delivers that snappy, explosive feel when the ball leaves the strings. If you've ever played with a softer string and wished there was just a bit more bite and punch, this is the step up you're looking for.

It comes in a range of gauges from 18 (1.15mm) all the way down to 15L (1.35mm), so you can dial in the balance between feel and durability that suits your game. Thinner gauges like the 18 give you more touch and feedback, while the thicker 15L will last longer if you're a heavy hitter who burns through strings.

Available in Silver, Blue, and Orange, the Diadem Pro X is a smart pick for any padel player who prioritises explosive response and wants a string that rewards aggressive, spin-heavy play.