MathCatSeamless Workout Shirts for Women Long Sleeve Yoga Tops Sports Running Shirt Breathable Athletic Top Slim Fit

Shirt has some markings on it; can I wash it or return it if it doesn’t come out

I'm s/xs, 5'2/110lbs but even medium too tight, so trying large as material is yummy and nice detail. if looser would be perfect?

Do these shirts hold up to armpit sweat? Or does every drop show?

Is blue_03 back in stock in small now? it says in stock but last time i ordered you guys cancelled