The Cressi (R) Lince Mask can be used in the most demanding underwater descents and recreational use. Soft silicone materials create a tight seal around women, children and smaller faces. Exceptional visibility and low internal volume are key attributes that will make this your go to mask on your next adventure. FEATURES: Inverted drop lens shape, inclined Tempered glass Very low internal volume Extraordinary visibility Instant adjustment strap buckles 100% silicone materials Manufacturer's 2-year warranty Model: DS3110, DS3120 For additional information relating to the Manufacturer's Warranty, please contact 201-594-1450.