This is the Mares Mid Size X-Vision Liquidskin Quality Scuba Diving Mask Features: Mid-Size fit for smaller faces Field of vision increased by an astounding 20% New anatomical skirt provides superior fit and seal Vibrant new colors A revolutionary new design delivers an even more attractive and high-performance X-vision. The combination of two different types of silicone and small horizontal ribs on the skirt ensure unmatched comfort. Those marks on your face after a dive will be nothing but a distant memory.