Biggest size? 2x. I haven't been able to comfortably fit into a 2x shirt since my freshman year of high school. My shoulders prohibit that, and even if they didn't, a non-tall shirt is not going to be of use to anyone over 6'3".
Also, monthly auto-clothing deliveries implies a level of replacability for the profitable clothes that would lead me to think they'd look good for a limited amount of time and that quality fabrics and tailoring would be limited. Which then makes me think they're not targeting people with standards and taste so much as people who do not want to think about clothes and that wouldn't be something I'd want to use.
We want users to come back to us for their wardrobe needs whenever they find they need them. That's why we built the product to be flexible, so you can schedule your next shipment when you want, or even pause indefinitely.