INA is the best high-end fashion consignment shop in NYC. Here you'll find everything from Lanvin to Hermes to Gucci to gently used Louboutin pumps at half the price. You can find highly covetable bags by the boatload and everything is reasonably priced. And with a number of locations throughout the city (primarily in SoHo) you can always find a ton of stuff to look through.
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