I'm 155lbs athletic and got the small. It fit snugly around my waist and shoulders. The fabric is soft and stretches a bit (which I like). Fair warning that the collar doesn't actually open. The delivery was faster than expected, arrived two weeks before the estimated delivery date. I ordered a medium (too big for me) and Ayino was quick to respond and refunded part of the purchase price (shipping would have been too expensive to return the shirt). In general I am very satisfied. Great product and great service.
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