TUSA Hyperdry Imprex II Snorkel Colour:Black The Tusa Optical frame is

The Tusa Optical frame is pictured inserted inside a Mares One/Pure Vision mask to illustrate how it is 'used' in a single lens snorkelling mask

It really fires you up for so many great weekends underwater

PADI Encyclopaedia of Recreational Diving

With detailed research into the chest and shoulder area

TUSA Hyperdry Imprex II Snorkel Colour:Black The Tusa Optical frame isThe Tusa Imprex II a semi dry snorkel, featuring Tusa's Hyperdry top and many great features in the design, including the large drain chamber which helps contain any excess water. A superb compact, soft silicone, pre angled mouthpiece helps to reduce jaw ache when used for prolonged periods of time. Tusa's Hyderdry top piece is a special angled chamber at the top that is offset from the main barrel of the snorkel. This unique chamber helps minimise