Lululemon White Align Tank Size 2

this was a gift from my mom, brand new aside from me trying it on and finding it doesn’t fit. I can’t return it because I’ve cut the tag from the shirt itself. I knocked off a few dollars from what the original price was ($69) because it looks like I accidentally got some makeup on it. Should come off when washed. Aside from that, brand new condition and I wish it fit.