There’s no feeling quite like finding fashion gold nestled in the archives of a vintage shop or thrift store. But these treasure troves are more than a place to find hidden, pre-loved gems, they’re also a great way to alleviate fashion’s impact on the planet. As we all try to shop more sustainably, vintage is a good place to start, but you need to know what you’re looking for. It pays to be extra savvy when shopping vintage, so here are a few things to consider.