After working as the head of product at Gap 's (RED) initiative and founding the beloved eco-luxury retailer Maiyet, Kristy Caylor wanted to make greater strides in creating a sustainable wardrobe. Last year, she founded the LA-based For Days , a subscription service that allows members to "buy" basics and then exchange them for new ones indefinitely. Members pay a one-time fee to sign up, and then $8 for every swap — an arrangement that will continue forever."Aspirational minimalism is really exciting, but it also can be kind of a downer," says Caylor. "What if there was a way to have the things we want, when we want them, but we're not accumulating junk?" Her solution: when customers send back their worn and undonate-able clothes, the GOTS-certified organic cotton products are shredded and re-purposed into new yarn. In addition, For Days has a Take Back program — they'll send customers a recycle bag to fill with unwanted garments and $4 credits towards memberships for each donation received.Sign up for a free For Days trial kit and receive a Recycle Bag with your first order. Upon signing up for the program and returning the bag, customers' accounts will be credited $4.