Made of 80% polyester and 20% elastane. This is an ultra cheeky tanning bottom that offers a super slim waistband design. Fit runs true to small - best to size up if you prefer the sides less snug on your hips. Will provide a bit more bum coverage than our other 'thong' style bottoms. This bottom remains a cheeky bum style even when sizing up. Fabric feels glossy and buttery soft - careful of sharp jewelry. Durable zig-zag stitching along the trim for a secure fit. Breathable and fully lined with two layers of high quality fabric. Fabric feels thicker and more luxe than other brands