DUI DuoTherm II 300 Mid Layer Vest

Quick answer: This is a piece of exposure protection from DUI. It's offered in XXL and up, which puts it in our extended-size collection.

Why bigger divers look at it

Sizing for the body you have, instead of squeezing into the largest size a brand happens to make, is the whole point. A suit with room through the chest, waist and hips stays comfortable for the full dive and still keeps you warm.

What you get

• Exceptional warmth with the DUI DuoTherm II 300 mid layer vest, perfect for cold dives.
• Stay comfortable and dry thanks to the Active Wicking Technology (AWT) in this fleece vest.
• Designed for a snug fit, this unisex DUI vest enhances your diving performance and mobility.
• Ideal for water temperatures between 45-60°F, providing reliable insulation for extended dives.
• The front zip closure ensures easy on and off, making this a practical undergarment choice.

Specs

• Brand: DUI
• Part numbers: 209423, 209424, 209425

Options

Offered in 3 options, including X-Large, Large, XX-Large.

Before you buy

Compare your chest, waist, hip and inseam against the maker's size chart rather than going by your usual size. Read The Proper Way to Fit a Wetsuit. More options: Extended-Size Wetsuits, Drysuits & Dive Apparel.