Skeleton involves a person riding a small sled down a frozen track while lying face down. The sport is a more intense form of luge because skeleton competitors leap onto the sled and slide downhill head first. Skeleton athletes can reach up to 80 mph on straightaways, causing forces up to 5g, so the helmet is a critical component for attitude as well as safety.

Japan' s Kaori Sakamoto competes in the women' s single skating short program of the figure skating event during the Pyeongchang 2018 Winter Olympic Games at the Gangneung Ice Arena in Gangneung on February 21, 2018. (Photo by John Sibley/Reuters)

USA's Jourdan Elizabeth Delacruz reacts as she competes in the women's 49kg weightlifting competition during the Tokyo 2020 Olympic Games at the Tokyo International Forum in Tokyo on July 24, 2021. (Photo by Edgard Garrido/Reuters)

Martina Maggio, Alice D'Amato, Lara Mori, Asia D'Amato, and Vanessa Ferrari of Team Italy pose in front of the rings during Women's Qualification on day two of the Tokyo 2020 Olympic Games at Ariake Gymnastics Centre on July 25, 2021 in Tokyo, Japan. (Photo by Mike Blake/Reuters)

Caterine Ibarguen of Team Colombia competes in the Women's Triple Jump Qualification on day seven of the Tokyo 2020 Olympic Games at Olympic Stadium on July 30, 2021 in Tokyo, Japan. (Photo by Matthias Hangst/Getty Images)

Riders from Netherland and Belgium crashes in the women's track cycling madison final during the Tokyo 2020 Olympic Games at Izu Velodrome in Izu, Japan, on August 6, 2021. (Photo by Matthew Childs/Reuters)

Giant Olympic rings are towed on The River Thames past The Tower of London on February 28, 2012 in London, England. (Photo by Peter Macdiarmid/Getty Images)