The SeaLion BC from SeaSoft comes in just four sizes. But that doesn’t mean it fits just four sizes of divers. With the SeaLion, a diver can actually keep the same-sized BC for a lifetime. For example, the extra-small SeaLion will fit a typical 10-year-old who weighs about 50 pounds, but will then adjust to fit an adult up to 180 pounds.

With its custom configuration, the JT40D has been engineered to allow complete personalization or set-up for mission-specific diving. This deluxe technical diving system carries up to a 95-cubic-foot tank and is ideal for divers wearing a dry suit.

The Express Adjustable delivers kicking power and comfort for year-round diving in all conditions. Now available in an open-heeled version, the Express Adjustable Fin uses Aqua Lung’s patented mid-foot flex joint to take strain off the toes and ankle.

ScubaLab examined 18 new masks to help you find one that will fit your face — and style of diving.

The Testers’ Choice in neoprene suits, the XV4 was unsurpassed in comfort and warmth in and out of the water.

ScubaLab's Tester's Choice and Best Buy picks for 2011 drysuits

The Dolphin Tech T110 Canister light generates a super-bright light beam well suited for advanced diving or cave exploration. In ScubaLab testing, its three LEDs produced an intense 12-inch diameter hotspot, matching the brightest ScubaLab has ever tested.

Utilizing Aqua Flex four-way stretch neoprene throughout, the Aqua Lung SolAfx packs 8 mm in the torso for heavy thermal protection to the core area, and 7 mm in the arms and legs for enhanced flexibility on the surface and at depth.

Ideally designed for dive shops and charter operations, the Start Pro BC from Cressi nevertheless boasts a number of features found on higher-end BCs designed for personal ownership.