Engineered for elite level male and female swimmers, all Tracer X Nano goggles are packed with a range of state-of-the-art features including a smaller size for petite face shapes, an ultra low profile design, five removable nosebridge size options and high definition lenses. In addition, every pair is equipped with durable, liquid silicone gaskets that provide a comfortable, watertight seal. Plus, with 180¼ wide peripheral range, the Tracer-X Nano promises a clear, extensive field of vision.