It took 23 days for delivery of a single pair of glasses. My vision was poor with my old glasses, so I was in a hurry for the new ones. I live on a busy city street, but the glasses were tracked Undeliverable and returned to their lab. Many phone calls and emails later, 11 days after the promised date of delivery, I have glasses. I will not do business with Warby Parker anymore. On the plus side, it was easy to reach customer service reps who helped along the way.