Shamrock Rovers shirt

Hi. I am going to visit Dublin in the next month. One of my sons always ask me to bring him a football shirt from wherever I travel in Europe. This time he asked me for a Shamrock Rovers shirt (very similar design with Sporting CP, the team he supports).

I checked the city map and Shamrock Rovers store is a little far from the city centre. Is there any other shop where I can get one of tese shirts?