This set is a fantastic way of enjoying the sights under the surface. The snorkel mask features a polycarbonate tempered glass lens that is angled for excellent vision and maximum safety. It also benefits from adjustable side clips. Along with this, the snorkel features a standard universal mouth piece, a caged purge valve for quick and effective clearing, a sliding strap clip and wave guard. Secure, comfortable and high performing, this is a perfect example of what a snorkel set is capable of.