100% Cotton Tank Top made of a soft 1x1 ribbed knit jersey. It definitely makes a statement in with the contrasting black tee shirt and white print! It is great under a jacket or sweater...or if you are very brave, all by itself! Great for the gym or for exercise because it is nice and cool. This shirt fits like the fashion tee...it runs small. The size equivalents are as follows (ladies sizing): SM (0-2) MD (4-6) LG (8-10) XL (12-14) XXL (16)