Pros: Lots of designer brands at deeply discounted prices. Good drill-down options on categories. Selling is simple.
Cons: No Android app. No men's, juniors', or children's clothing.
Features: If you have champagne tastes but a beer pocketbook, Threadflip (Web, iOS) could be your ticket out of the Goodwill lottery. The service focuses heavily on top brands such as Frye, Alice + Olivia, and Betsey Johnson--and many items are discounted as deeply as 50 to 70 percent off. There's even a sale section for hardcore bargain-hunters, and an Editor's Picks section for customers with less patience for digging. Threadflip's White Glove Service is great if you have a lot of top-quality goods to sell and not a lot of time: The service will send you a prepaid package, sort and photograph your clothing, list items in the Editor's Picks, and handle all customer service for a 40 percent cut.
Pros: Site is nicely designed with good photography. Selling stuff is extremely easy. Buyers love the great return policy.
Cons: No mobile apps. No men's or kid's clothing.
Features: Twice doesn't offer any mobile apps, but it's wonderfully simple and stress-free. If you're selling, Twice does all the work for you. You can order a prepaid shipping pack or print a prepaid label, and the service will make you an offer, just as a thrift store would. If you accept, Twice pays you up front, and then photographs, lists, and sells your items. (If you don't like its offer, or it doesn't like your clothes, you can pay $5 to have them sent back to you--or Twice will donate them to charity on your behalf.) On the buying side, the site does a nice job of presenting clothing and accessories, filters make it easy to finding the items you want (and can afford), and Twice offers a Zappos-like return policy--highly unusual for a used-clothing emporium. You can return any item for a full refund within 30 days and Twice will send you a prepaid return label.
Pros: Well-designed site with a great selection of men's clothing, along with women's and youth garb.
Cons: Finding high-quality items requires digging. You can't filter by price. No mobile apps.
Features: Dresm resembles a better-designed eBay. Like the auction site, you have to dig to find the items you want among the many random pieces for sale, and the items aren't always presented professionally. However, Dresm's site has a clean design, and you can hover over an image to view the price or quickly add it to your cart. Unlike most of the other options on this list, Dresm has a decent selection of menswear, featuring everything from snowboarding boots to flannels.
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