Lululemon Black Button Cardigan Wrap Snap Buttons

This is a hand me down from my sister. I really enjoyed it but don't wear it much because I don't wear black generally. Unfortunately, there are no tags so I don't have much info on it. It fits me fine, and I'm a size 8. NOTE: I tagged this as a size M but I'm not 100% sure it is a M as it has no tags. Also I estimated the original price.