Lightweight and compact: Weighing only 90g and measuring 18.5 * 8.5cm, our product is easy to carry and won't weigh you down. Durable and high-quality materials: Made with TPE, ABS plastic, and PC lens, our product is built to last and withstand impact. Ajustable: With fixers that can be adjusted to fit different helmet rails. Comfortable and breathable design: Our product features a natural fit face design that is breathable and comfortable to wear for extended periods of time. Two modes for maximum flexibility: Our product can be used as goggles alone with an elastic headband, or attached to a helmet with 2pcs fixing buckles and 2pcs rails. This gives you the flexibility to use it in a variety of situations.