Decoding billionaire style at this year's Sun Valley conference: It's all about half zip sweaters, muted tones, and On shoes.

Decoding billionaire style at this year's Sun Valley conference: It's all about half zip sweaters, muted tones, and On shoes.

OpenAI CEO Sam Altman (left) has on a neutral crew neck T-shirt, while Salesforce CEO Marc Benioff sports a cowboy look at the conference in Sun Valley, Idaho.Kevin Dietsch/Getty. <ul> <li>Investmen… [+6724 chars]

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