ppc m1 r sds semi dual skin wingIntroducing the PPC M1 R (SDS) Semi Dual Skin WingWing. PPC Foiling: Introducing the M1 R (SDS), the next evolutionary step in Wing design. Designed for those who crave more speed and superior upwind performance, this Wing offers improved aerodynamics that convert every gust of wind into pure power. Superior design for unmatched performance The M1 R is a state of the art Wing with a semi dual profile, building on the foundation of the original M1. By