Small size should have fitted me by the measurement chart given, but it was tight across the back, and the arm length was short, and I am a normal size small. Loved the shirt otherwise. I sent it straight back for exchange for Medium size, but I haven't received my replacement. I have a Certificate of Posting dated 09th. August 2019 Time: 14:23:46. Session: 4401-1171-2-2530116-3. Postage cost to me: £9.94. I did not pay extra for Tracking as they wanted a further £8, plus an additional £4 if it was Signed For Tracked. Tracked made it more expensive than the cost of the shirt!!! Surely even without Tracked the parcel will still be delivered by ordinary mail. The small package must be waiting for you at your local post office if they do not deliver to your door? Can you check please, as I need the military shirt for a military event early September. Thank you for any help you can give me.