Lululemon black yoga tank top with mesh upper back and laced rouching

Stylish black yoga tank top with super flattering cut, the top of the back is muscle back with mesh for breathability. The sides are laced up which is super cute. It’s in great condition. Unfortunately I cut the size tag out when I bought it, so I’m not sure if it’s a 10 or a 12. Feels like a 10.