Made of soft silicone and tempered glass with 180degree(s) wide-angle dual lens design for expansive underwater view. Tempered glass lenses offer impact resistance, scratch resistance and anti-glare properties. Liquid silicone skirt and strap conform to face shape for watertight seal without marks. Anti-fog coating prevents fogging for clear vision. Soft nose cushion provides comfort. Lightweight Tpu frame with silicone skirt ensures snug leak-free fit. Adjustable headband fits adults and teenagers. Weight: 0.57 pounds.