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.

A young oriental small-clawed otter at the zoo in Neumuenster, Germany, March 5, 2014. The six young otters (one male, five female) were born on December 7, 2013. (Photo by Maja Hitij/EPA)

A model presents a creation from the LaQuan Smith Fall and Winter '23 collection at the Rainbow Room during Fashion Week in New York City, New York, U.S., February 13, 2023. (Photo by Caitlin Ochs/Reuters)

An aircraft crosses a bridge over a highway the airport in Frankfurt, Germany, Friday, September 20, 2019. Protests of the “Friday For Futurte” movement against the increase of carbon dioxide emissions are planned Friday in cities around the globe. In the United States more than 800 events were planned Friday, while in Germany more than 400 rallies are expected. (Photo by Michael Probst/AP Photo)

A view of Worker and Kolkhoz Woman, a sculpture by Vera Mukhina, at the main entrance to Moscow's VDNKh exhibition center in Moscow, Russia on September 27, 2017. (Photo by Dmitry Serebryakov/TASS/Barcroft Images)

A dog walker on Longsands beach before sunrise in Tynemouth, UK on April 1, 2016. (Photo by Owen Humphreys/PA Wire)

British television, radio presenter and DJ Maya Jama arrives at The BRIT Awards 2022 at The O2 Arena on February 8, 2022 in London, England. (Photo by David M. Benett/Dave Benett/Getty Images)

A worker pushes a wheelbarrow past a mural in Doha on November 8, 2022, ahead of the Qatar 2022 FIFA World Cup football tournament. (Photo by Gabriel Bouys/AFP Photo)