Let's talk T-SHIRTS - high quality, medium/heavy-weight, evening-wear t-shirts

Gentlemen, any particular brands you recommend for higher-end plain t-shirts? Specifically, t-shirts that are...

• High quality
• Medium or Heavy weight
• Would work well with evening-wear (ex: under a suit jacket or sports coat or paired with designer trousers)
• Look tailored/higher-end and not like the t-shirt you're wearing to the gym or the basketball court
• Have a polished look around the neck (no slack, misshapen necks)
• Have a flattering, not-too-baggy, not-too-snug fit
• That are available to order online and ship within the U.S.