Ayrton Senna1991 season design

The story

Senna's Sid Mosca design, first seen in 1979, is a yellow helmet with a green stripe around the upper visor and a light metallic blue stripe around the lower visor; Mosca said the stripes symbolised movement and aggression and the yellow youth, while the colours also echo the Brazilian flag, and the design never changed significantly apart from sponsorship (Rheos brand helmets in 1990-1991, Shoei in 1992-1993).