The best way to find out your size , just follow this simple advice.Measure the width of your shirts. For reference take the shoulders and measure them from one to another point .Note that the polyester shirts will not shrink when washed.
Brand: Star Trek
Officially Licensed Merchandise
Cut: Regular Fit / Round Neck
Material: 100 % Cotton
Size: S , M , L , XL , XXL , XXXL
Packing: Single packed in a blister