Mares Second Stage HR Regulator rugged GPS smartwatch The carbon fiber front cover

The carbon fiber front cover is handmade and paired with a full-metal main casing to deliver strength

these seals integrate with BARE drysuit systems to maintain a dry

5 lb) and 2 NBR straps

Two additional features can be added as optional upgrades later: Heart Rate Monitor and Predictive Multi-Gas

Mares Second Stage HR Regulator rugged GPS smartwatch The carbon fiber front coverHR Second Stage Adjustable Comfort. Effortless Performance. The HR second stage is engineered for smooth, controlled breathing at any depth. Its Adjustable Breathing Comfort System lets you fine tune inhalation effort to match your preference, while the VAD system with a curved bypass delivers natural, high flow performance throughout the dive. The lightweight technopolymer housing balances durability and performance, enhanced by PAD (Pneumatically