Introducing the RF 01! Designed in collaboration with Roger Federer, this racquet reflects insights accumulated over one of the most legendary careers in tennis history. Featuring the same frame geometry and technologies as Federer's RF 01 Pro, this racquet combines spin-friendly precision with an arm-friendly stiffness of 64-RA. At roughly 11.2 ounces strung, the RF 01 is perfectly weighted for intermediate players; it will also appeal to the advanced ball striker looking for a speedy all-court weapon or a platform for customization. This racquet's design is appropriately named SABR, a name the epitomizes Federer's attacking style. It includes a powerful carbon fiber layup with Braid FORTYFIVE technology to enhance both dwell time and pocketing while helping the racquet bend in ways that complement the vertical mechanics of the modern game (think spin). It also features foam throughout the racquet to deliver a more solid feel along with a reinforced shaft and yoke for more torsional stability through impact (think less racquet flopping on volleys). Ultimately, this companion to Federer's RF Pro is defined by its quick handling and controllable power. The arm-friendly flex point is a nice bonus.