Snorkeling Scuba Dive DRY Snorkel Purge Mask w/Panoramic View Dive Gear Package includes Promate Avanti TL Side-view Edgeless Purge Mask (MK398) and Cobra Dry Whistle Snorkel (SK680) Promate Avanti TL Side-view Edgeless Purge Mask (MK398) Patented purge, and channeled skirt design directs bubbles away from view. Ideal for medium to large faces. Tempered glasses. Promate Cobra 100% Dry Whistle Snorkel (SK680) Built-in whistle housing. Quick slip-in snorkel keeper. Silicone purge valve for easy draining.