Size small! Perfect for tanning It’s a Brazilian bikini so it has a very small back piece! Leaves the best tan lines! I usually scrunch the top and make it thin while tanning so it leaves cute tan line as well! Comes with small wet bag making it perfect bikini to tan swim and take home and wash! Both top and bottom Care instructions: Hand wash with cold water Lay out flat to dry Don’t leave it in sun to dry Don’t leave it in wet bag while wet as it can ruin the bikini.