Mares Second Stage DUAL NR:NR This channel shape moves a

This channel shape moves a greater amount of water resulting in more thrust for the same effort

The face piece is made of bi-silicone

The system uses a mechanical interference based system that during insertion pushes the holding prongs into position and prevents them from retracting

Open Water Diver certification

design for air travel optimization

Mares Second Stage DUAL NR:NR This channel shape moves aDescription The Dual second stage is ideal for travelling; it weighs only 183g and is made of ultra lightweight technopolymer. The purge button is made of two materials, using a special elastic technopolymer which guarantees resistance even after long, intense periods of use. Its large size also makes it easy to operate in all circumstances, even when using thick gloves. This second stage is designed to ensure high air flow and is certified for use