H20 swim mask and snorkel set this h20 swim mask and snorkel set is equipped with a fitted mask and snorkel the mask and snorkel are great for exploring sea life the mouth piece is moulded for comfort and the purge valve provides easy water clearance snorkel set adults set adjustable goggle straps high quality design mask snorkel conforms with bs en1972 1997 safety standard splash protector for sea and pool use h20 swim branding navy