Spinlock Aero Pro 50N PFDSpinlock Aero Pro 50N PFD The Aero Pro is a body profiled 50N flotation vest; the close fitting collar, sleeves and over length waist gaiter helps to reduce wind and water resistance to ensure it is as aerodynamically efficient as possible and reduces any snagging risks. Features 50N Flotation vest for high agility sailing Durable high stretch woven construction for close fitting body Wrap around, close fitting neck collar Over length waist gaiter