Sara Blakely just became an entrepreneur again, but not everyone's sure about $400 sneaker heels

Tech Insider
A black and silver Sneex shoe.
Sara Blakely's next act is the footwear brand Sneex.

Sneex

How Spanx founder Sara Blakely makes and spends her $1.1 billion fortune

Tech Insider
Sara Blakely
Sara Blakely.

Gilbert Flores/Variety/Penske Media via Getty Images

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