The description of the item says that this t-shirt is cut slimmer and that is true. The shirt shrinks when washed, so definitely be wary of the sizing since you now have a t-shirt that is already slim-fitting and shrinks further when washed.
As an endurance athlete, I often have trouble finding clothing that fits my smaller physique because even smalls are often too big, but this shirt fits well on me (only further testament that this t-shirt runs on the smaller side). My body measurements are as follows, so I hope this helps you with sizing (Also check out photo for T-shirt measurements AFTER I washed it; for SMALL size only)...
T-shirt size ordered: SMALL
Height: 5 feet 7 inches
Shoulders: ~16-17 inches across
Chest: ~14 inches across
Waist: ~27 inches circumference
Overall, the t-shirt fits well (for me) and the material is more weighty than my other t-shirts from Hanes and other brands. I would just be wary of the sizing.