National Geographic Z9 Swim Mask.Explorer Swim Series Swimming Goggles & Masks

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Description:
Z. Series SWIM Masks This family of swim masks incorporates the best features of both snorkeling masks and goggles to give the "water fitness enthusiast" maximum comfort and true seal reliability. The Z SWIM Masks are constructed of 100% hypoallergenic liquid silicone, the single construction skirt adds to the comfort by evenly spreading the sealing pressure over the forehead and cheek bones. The lenses are constructed of a polycarbonate composite design, scratch resistant and offering 100% UV and anti-fogging protection. The replaceable silicone mask strap can be easily adjusted using the same Ratchet Quick Lock RQL design found in the Nat Geo Snorkeler Mask Series. With a simple pull to tighten or a press of a button to release.