The Fangrow Running Sail
just like NASA!
Stop using your legs for brakes! Let yourself go and run downhill as fast as you want. Exhilarating!
Run down steep grades like it was level ground. Unbelievable! No pounding, no jarring, no dead quads.
Experience terminal velocity, not runaway acceleration. Stay in control with the running sail.
Tom Fangrow's Home Page