Looking for nice men's clothing store

My tall, thin son asked for professional clothes for his holiday gift. He's about to start an internship at a slacks and blazer kind of place. I'm ok spending money for nice items that can be tailored to fit.

I'm super excited for this experience with him. He asks for so little. I can't wait to spoil him a bit before he graduates.

Where do we go in the greater GR area?