I am extremely surprised at how good the quality is of this product. It is equally as good as an average retail polo shirt that would set you back £29.99. The lack of logo is also a benefit - so you can still look smart without following the crowd of losers who always buy the same brand, I'm sure you know what I'm talking about.
But some important factors to consider. The shirts are slightly on the big side.
A small is what I consider to be a UK Size Medium. This would lead me to assume that a Medium is likely to be Large UK, Large to be XL UK, and so on and so fourth. Overall, very chuffed, great fit, very comfortable and at an excellent price. Very impressed.