Skeleton helmets at Beijing 2022.

YANQING, CHINA - FEBRUARY 08: Nathan Crumpton of Team South Korea slides during the Men's Singles Skeleton Training Run on day four of the Beijing 2022 Winter Olympic Games at National Sliding Centre on February 08, 2022 in Yanqing, China. (Photo by Adam Pretty/Getty Images)

YANQING, CHINA - FEBRUARY 09: Katie Uhlaender of Team United States slides during Women's Skeleton training on day five of the Beijing 2022 Winter Olympic Games at National Sliding Centre on February 09, 2022 in Yanqing, China. (Photo by Julian Finney/Getty Images)

YANQING, CHINA - FEBRUARY 09: Mirela Rahneva of Team Canada slides during Women's Skeleton training on day five of the Beijing 2022 Winter Olympic Games at National Sliding Centre on February 09, 2022 in Yanqing, China. (Photo by Julian Finney/Getty Images)

YANQING, CHINA - FEBRUARY 08: Yin Zheng of Team China slides during the Men's Singles Skeleton Training Run on day four of the Beijing 2022 Winter Olympic Games at National Sliding Centre on February 08, 2022 in Yanqing, China. (Photo by Adam Pretty/Getty Images)

YANQING, CHINA - FEBRUARY 09: Yulia Kanakina of Team ROC slides during Women's Skeleton training on day five of the Beijing 2022 Winter Olympic Games at National Sliding Centre on February 09, 2022 in Yanqing, China. (Photo by Julian Finney/Getty Images)

YANQING, CHINA - FEBRUARY 09: Tina Hermann of Team Germany slides during Women's Skeleton training on day five of the Beijing 2022 Winter Olympic Games at National Sliding Centre on February 09, 2022 in Yanqing, China. (Photo by Julian Finney/Getty Images)

YANQING, CHINA - FEBRUARY 08: Ander Mirambell of Team Spain slides during the Men's Singles Skeleton Training Run on day four of the Beijing 2022 Winter Olympic Games at National Sliding Centre on February 08, 2022 in Yanqing, China. (Photo by Adam Pretty/Getty Images)

YANQING, CHINA - FEBRUARY 08: Mattia Gaspari of Team Italy slides during the Men's Singles Skeleton Training Run on day four of the Beijing 2022 Winter Olympic Games at National Sliding Centre on February 08, 2022 in Yanqing, China. (Photo by Adam Pretty/Getty Images)

YANQING, CHINA - FEBRUARY 09: Jane Channell of Team Canada slides during Women's Skeleton training on day five of the Beijing 2022 Winter Olympic Games at National Sliding Centre on February 09, 2022 in Yanqing, China. (Photo by Julian Finney/Getty Images)