I ordered two sizes having never tried a compression shirt before. Personally I'm between sizes and generally fit comfortably in an XL, however, Medium/Large size fit me better. The beige color hides well under my dress shirt, and provides a subtle slimming appearance. It's snug, but I can move fluidly in it without feeling robotic. It took a while to get used to the compression shirt, but it felt fine once I got comfortable in it.
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