Open Box Seac Unica Full Face 180° GoPro Compatible Snorkel Mask - Blue/Orange, Size: Large / X-Large Outdoor Gear They are approved for use

They are approved for use with up to 40% oxygen

so that the already extraordinary visibility of the Matrix is increased by 25%

The foot pocket accommodates 3-4 consecutive sizes

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Open Box Seac Unica Full Face 180° GoPro Compatible Snorkel Mask - Blue/Orange, Size: Large / X-Large Outdoor Gear They are approved for usePlease note this is an OPEN BOX offer. The item will be in new condition, but may not have original packaging. PRODUCT DESCRIPTION Unica is the full face snorkeling mask designed and manufactured by Seac. It allows you to explore the world below the water's surface, breathing naturally through your nose and mouth. Exhaled air is vented through an exclusive patented system located in the front of the mask to make exhaling effortless and eliminate the