lol mate! I don't wear socks abroad, it's good just to not wear them for a couple of weeks I can get by with a couple of pairs of flip flops
The players have a choice as the club order full socks and the leg warmer style that looks like the sock with the foot cut off.
I didn't know that Pompey and don't really understand the benefit tbh. Is there something special about the sports sock they wear or are they the ones that anyone could buy? I remember the socks my team wore one season were a bit uncomfortable because of the stitching of the seam on the toes but other than that it does indeed seem a bit OTT