1.THE X-RAY MASK: You shouldn't have to give up field of view for a low volume mask and with the X-Ray spearfish mask you won't. 2.LOW VOLUME: Low volume mask is ideal for diving. Soft Silicone skit is amazingly comfortable. Its wide angle bridge design was a result of studying eye movement patterns among divers, resulting in a huge field of view without the bulk of traditional masks. 3.ANTI-FOG: The soft matte black silicone skirt cradles your face and virtually eliminates glare. Lenses are tempered glass and feature anti-fog technology. 4.ADJUSTABLE STRAP: Features a fully adjustable strap designed to fit a variety of face shapes. Adjusts to be extremely comfortable for all day wear. Our Spearguns and dive masks are designed and built in Oceanside, California.