"We have advantages in that we are a direct-to-consumer brand, and so we get so much data and so much feedback from our customers who are actually buying and shopping for the product. … We started getting feedback from our customers saying, ‘I love these styles, but you don’t have anything that fits me,’ or ‘You only offer one frame that fits me.’ And so we took all that feedback and said, ‘Let’s actually put some data around this and understand the problem."

Warby Parker co-founder and co-chief executive Dave Gilboa, in a recent interview with the New York City-based Observer for its story on Warby’s launch of an extended sizes collection.