All helmets designed by Decathlon have the same qualities of energy absorption in the event of an impact. “All our helmets are certified with the same requirements, whatever their price,” emphasizes Thomas, innovation manager at DHEC (Decathlon Helmet Engineering Center). Manufacturing processes and materials are common. Design evolves from sport to sport to meet the needs of uses, functions, codes and accident risks. “For a ski helmet, for example, we prefer a larger coverage area in connection with accident data,” explains Thomas.