Designed for cold-water divers, Thermalution’s Power-Heated Undersuit can be worn beneath any wetsuit. A thin, flexible heating element built into the nylon/lycra Undersuit lays against your back and radiates heat while you’re cruising the cold depths.

Fit is always top priority when selecting a dive mask. The new M-211 Freedom One from TUSA offers the company’s latest Freedom Fit and Freedom Dry technologies intended to maximize comfort and minimize leakage.

U-T-C’s U-D-I, is an underwater communications tool, safety device and dive computer, all rolled into one wrist-mount unit that seamlessly connects you to the boat unit.

SEASOFT’s new-generation STEALTH glove is a combination of the latest technology advances in neoprene. The new SUPERSTRETCH™ neoprene keeps its shape, stretches to fit and resists the fracturing of the air cells, even after scores of dives.

IST’s Fathom Blue is a powerful long-blade full-foot fin purpose-built for free diving. The foot pocket is made from 100 percent rubber, yet offers multiple densities to provide some areas with supple softness for comfort, and others with rigidity for maximum control, durability and spring.

The author and diver talks about his extraordinary work with Jacques Cousteau

A letter writer in our March 2012 issue wins a Nautilus Lifeline!