You’ve read about fast fashion, in which underpaid workers in third-world countries provide western consumers with cheap and disposable goods. You’re all clear on cotton, which uses 17% of the world’s insecticides and is 94% Genetically Modified. But with that in mind, sometimes you just have to shop—and many of those times take place during the holidays. Which is why it makes sense now to figure out what matters to you when it comes to the clothes that you buy. Here’s how I categorize eco fashion.