The publisher has designed uniforms for the country's Winter Olympics squad based on the armour seen in its X-O Manowar title, reports The Wall Street Journal.
"The sponsorship is going to help the team in a couple of ways," said Gordy Sheer, USA Luge's director of marketing. "They'll look good and they'll feel fast, but also Valiant is helping the team with financial support.
"We're a small sport, and every bit of help that we get is absolutely meaningful and directly affects our ability to perform."
The move marks the first time a comic publisher has used a national sports team to promote one of its characters.
Valiant relaunched its comic book line earlier this year with X-O Manowar spearheading the revival.