The Slingshot Phantasm Freeride Infinity (PFI) 633/710 Lower Package kite foil was built to provide you with maximum freeride performance. With equal parts speed, stability, lift and maneuverability, this is the most predictable and user-friendly foil on the market. The Slingshot Phantasm Freeride Infinity (PFI) 633/710 Lower Package kite foil was built to provide you with maximum freeride performance. With equal parts speed, stability, lift and maneuverability, this is the most predictable and user-friendly foil on the market. The PFI 633/710 Lower Package is the most intuitive foil combination ever. It's easy and safe to learn one, yet offers unmatched performance and versatility as you progress. Provides the best all-around performance on the market The perfect blend of speed stability, lift and maneuverability Progress quicker and easier than ever before with smooth, unmatched stability The Phantasm Freeride Infinity (PFI) 633/710 Lower Package features a larger, lower aspect front wing that gives it tons of lift, stability, and dynamic performance at lower speeds. This package is built with the PS 400 carbon rear stabilizer and 710 fuse. The PFI 633 package was built to provide you with maximum freeride performance as the most predict