What’s the name of the top to for this and why is it not tagged, I’m so tired of all this running around that comes with operating this site

Wish it was that vibrant purple. Its very very dull and dark. Oh well. Love the side slit. i have a 25" waist 38" hips im muscular but slim and the small fit well. Alil tight around my glutes but then the M would be large at my waist the eternal issue.