32 Degrees Women's Lightweight Baselayer Crew Top | Long Sleeve | Form Fitting | 4-Way Stretch | Thermal

Small or medium? I'm 5'7 with a long torso and arms. I don't want the top to be baggy, but sometimes size smalls are too tight under the arms.

Does this help absorb sweat on hot days?

Is the white shirt thin and see through?

What is the Length of size large?