The KOO Open Cube Yellow Fluo features an open polycarbonate frame with easily removable Zeiss lenses, ideal for both road and MTB riding. Weighing just 30 grams, it's equipped with a micrometric temple adjustment and a soft rubber nose bridge adjustable in two positions (a smaller nosepiece is also included as standard). The Active Airflow system lets the frame and lenses tilt into three different positions for optimal airflow, fog prevention, and an unobstructed field of view. Includes two lenses (an Infrared mirror and a clear lens) plus the smaller nosepiece. 100% made in Italy.