The polyester spandex material has decent stretch, it's lightweight and breathable. The neckline with cutout keyhole is cut perfectly, it's just the right amount of revealing to peak curiosity, yet not enough to be considered inappropriate. For reference, im 5'5" 120 lbs usually wear M/L (Fits true to size) I love the high rise and cheeky thong cut of this swimsuit, it's actually really comfortable. Easy to put on and easy to adjust.