Lululemon bikini bottoms

I can’t remember the name of this bottom but it’s a great simple and versatile swim bottom. The color is a really dark gray- goes with every top! These did a great job of staying in place, even during water sports! Not 100% sure on the size as I removed the tags. The waist/hip measurement is about 16” laying flat but since they don’t have a swim size chart online I’m guessing it’s a 4!