I went to a design conference this weekend and everyone was wearing Warby Parker glasses. The main reason why Warby Parker glasses are so popular is their design. They are super hip, and their seasonal collections always bring something new and unique. They also have a fantastic service- you can order 5 pairs of glasses online, try them on, and return- all for free. If you don’t like the pair that you bought you can return them within 30 days at no additional cost (I have a friend who orders a new pair every month without ever paying). Additionally, the company was started with the idea of doing good in mind- for every pair that you buy another pair is donated to developing countries.