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Aqualung Aquaflex Men's 5mm Dive Wetsuit

AquaLung  |  SKU: SU8760113S
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Regular price $429.00
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Color: Black/Chine Grey
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Product Information

The Aqualung AquaFlex Men's 5mm Dive Wetsuit is a men's full wetsuit built from 4-way stretch, petroleum-free neoprene with a Canadian cuff, a semi-dry zipper system, and Powertex knee protection, offered in sizes S through 3XL in a Black/Chine Grey colorway.

Who it is for

This 5mm full suit is for divers who want one-piece neoprene coverage of the body, arms, and legs rather than separates. It is offered across men's sizes S, M, L, ML, XL, 2XL, and 3XL, giving divers a range of sizing options to find a snug fit, and it comes in a single Black/Chine Grey colorway.

Key details

  • 4-way stretch neoprene that is petroleum free, for a maximum range of motion.
  • Canadian cuff seals built into the suit, used on AquaFlex's 5mm styles to help with warmth and minimize water entry.
  • Semi-dry zipper system for entry and exit.
  • Powertex knee protection.
  • 5mm neoprene thickness, full-suit coverage of arms and legs.

Compatibility and sizing

The AquaFlex Men's 5mm wetsuit is available in sizes S (Small), M (Medium), L (Large), ML (Medium Large), XL (X-Large), 2XL (2X-Large), and 3XL (3X-Large), all in Black/Chine Grey.

DiveCatalog.com is an authorized AquaLung dealer and a dive shop in Irvine, California, open since 2003. Call or chat with our team if you have questions about sizing or fit before you order.

⚠️ WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.

Frequently Asked Questions

How should a wetsuit fit?

A wetsuit should feel snug everywhere, with no loose pockets at the lower back, armpits, or behind the knees where water can collect and flush. It will feel tighter than normal clothing on land, which is expected, because the suit works by holding a thin layer of water that your body warms. If you cannot take a full breath or the neck chokes you it is too small, and if you can pinch loose folds of neoprene it is too big.

What do you wear under a wetsuit?

Most divers wear a swimsuit, a rash guard, or a thin dive-specific base layer under a wetsuit. A slick base layer makes a tight suit much easier to pull on and cuts down chafing at the neck, shoulders, and underarms. Avoid thick cotton clothing, which soaks up water, bunches, and makes you colder rather than warmer.

How do you put on a tight wetsuit?

Work upward in small sections, pulling a little neoprene at a time rather than yanking on one spot, and get the suit fully seated at the ankles and knees before working on the hips and shoulders. A plastic bag over each foot and hand, or wetting the suit first, helps it slide into place. Grip with flat palms rather than fingertips, since fingernails are the most common cause of torn neoprene.

Does a thicker wetsuit mean a warmer wetsuit?

As a general rule, thicker neoprene insulates more, so a higher millimeter rating is warmer in the same conditions. Warmth also depends heavily on fit, suit style, seam construction, whether you add a hood, boots, and gloves, how long the dive is, and your own cold tolerance, so two divers in identical suits can feel very differently. Use thickness as a starting point and refine it against your local conditions and personal experience.

How do I care for and store a wetsuit?

Rinse it inside and out in fresh water after every dive day, and use a wetsuit-specific wash occasionally to control odor. Dry it inside-out first and then flip it, always out of direct sunlight, because UV and heat break down neoprene faster than anything else. Store it hanging on a wide-shouldered hanger or laid flat rather than folded, so you do not set permanent creases.

How long does a wetsuit last?

Lifespan depends far more on use and care than on age, so a suit dived hard in sun and chlorine may soften within a couple of seasons while a well-rinsed occasional-use suit can last many years. Signs a suit is finished include compressed neoprene that no longer feels buoyant or warm, splitting seams, and looseness in areas that used to be snug. Repairing small cuts and seam separations early adds meaningfully to a suit's life.

What is the difference between a full suit, a shorty, and wetsuit separates?

A full suit covers arms and legs, a shorty stops at the upper arms and thighs, and separates such as tops, bottoms, and hooded vests layer to add warmth where you want it. Layering a vest or top under a full suit adds core warmth and can extend the range of a suit you already own. Choose based on how much coverage you want, both for warmth and for protection against stings and abrasion.

What sizes and colors does the AquaLung AquaFlex Men's 5mm wetsuit come in?

It is offered in men's sizes S, M, L, ML, XL, 2XL, and 3XL, all in a single Black/Chine Grey colorway. The range runs from S (Small) through 3XL (3X-Large). Call or chat with our shop if you are between sizes.

What is a Canadian cuff and why does the AquaFlex wetsuit have one?

A Canadian cuff is a sealed cuff design used on the AquaFlex 5mm style to help with warmth and minimize water entry. It works alongside the suit's semi-dry zipper system.

Does the AquaFlex Men's 5mm wetsuit include knee protection?

Yes, this wetsuit is listed with Powertex knee protection, and it is offered only in Black/Chine Grey.