Aqualung Hydroflex Men's Full Dive Wetsuit
In stock — ships from Irvine, CA
This item is currently on backorder. Order now to reserve yours, and we will ship it as soon as it is back in stock.
Aqualung Hydroflex Men's Full Dive Wetsuit - Black/Blue / M (Medium) is backordered and will ship as soon as it is back in stock.
Pickup available at In Store
Usually ready in 2 hours
Aqua Lung wetsuit sizing. Imperial in bold, metric underneath.
Men's wetsuits
Height and weight
| Size | Height ft/in · cm |
Weight lb · kg |
|---|---|---|
| 3XS / 42 |
4′9″–5′1″ 145–155 |
90–112 40–50 |
| 2XS /44 |
4′11″–5′3″ 150–160 |
101–123 45–55 |
| XS / 46 |
5′1″–5′5″ 155–165 |
110–132 50–60 |
| S / 48 |
5′3″–5′7″ 160–170 |
121–154 55–70 |
| M / 50 |
5′5″–5′9″ 165–175 |
132–176 60–80 |
| MS / 26 |
5′3″–5′7″ 160–170 |
130–176 58–78 |
| MT / 98 |
5′9″–6′1″ 175–185 |
146–191 65–85 |
| ML / 52 |
5′7″–5′11″ 170–180 |
154–198 70–90 |
| L / 54 |
5′9″–6′1″ 175–185 |
176–220 80–100 |
| LS / 27 |
5′5″–5′9″ 165–175 |
169–214 75–95 |
| LT / 102 |
5′11″–6′3″ 180–190 |
180–220 85–105 |
| XL / 56 |
5′11″–6′3″ 180–190 |
198–231 90–105 |
| XLS / 28 |
5′9″–6′1″ 175–185 |
198–231 90–105 |
| 2XL / 58 |
6′1″–6′5″ 185–195 |
210–242 95–110 |
| 3XL / 60 |
6′3″–6′7″ 190–200 |
242–264 110–120 |
(A) Chest, (B) Waist and (C) Hip
| Size | (A) Chest in · cm |
(B) Waist in · cm |
(C) Hip in · cm |
|---|---|---|---|
| 3XS / 42 |
27–31 70–80 |
24–28 61–71 |
28–31 71–79 |
| 2XS /44 |
29–33 75–85 |
26–30 66–76 |
30–33 76–84 |
| XS / 46 |
31–35 80–90 |
28–32 71–81 |
31–35 80–90 |
| S / 48 |
33–37 85–95 |
30–34 76–86 |
34–38 87–97 |
| M / 50 |
35–39 90–100 |
32–36 81–91 |
36–40 91–101 |
| MS / 26 |
35–39 90–100 |
32–36 81–91 |
36–40 91–101 |
| MT / 98 |
35–39 90–100 |
32–36 81–91 |
36–40 91–101 |
| ML / 52 |
37–41 95–105 |
36–37 86–96 |
38–42 96–106 |
| L / 54 |
37–41 95–105 |
36–40 91–101 |
40–44 102–112 |
| LS / 27 |
37–41 95–105 |
36–40 91–101 |
40–44 102–112 |
| LT / 102 |
37–41 95–105 |
36–40 91–101 |
40–44 102–112 |
| XL / 56 |
41–45 105–115 |
38–42 96–106 |
45–49 115–125 |
| XLS / 28 |
41–45 105–115 |
38–42 96–106 |
45–49 115–125 |
| 2XL / 58 |
43–47 110–120 |
40–44 101–111 |
47–51 120–130 |
| 3XL / 60 |
45–49 115–125 |
42–46 106–116 |
49–53 125–135 |
Women's wetsuits
Height and weight
| Size | Height ft/in · cm |
Weight lb · kg |
|---|---|---|
| XS / 34 |
4′11″–5′3″ 150–160 |
100–110 45–50 |
| S / 36 |
5′1″–5′5″ 155–165 |
110–121 50–55 |
| M / 38 |
5′3″–5′7″ 160–170 |
121–132 55–60 |
| MS / 38 |
5′1″–5′5″ 155–165 |
121–132 55–60 |
| MT / 38 |
5′7″–5′11″ 170–180 |
121–132 55–60 |
| ML / 40 |
5′5″–5′9″ 165–175 |
132–143 60–65 |
| L / 42 |
5′7″–5′11″ 170–180 |
143–154 65–70 |
| LS / 42 |
5′3″–5′7″ 160–170 |
143–154 65–70 |
| LT / 42 |
5′9″–6′1″ 175–185 |
143–154 65–70 |
| XL / 44 |
5′9″–6′1″ 175–185 |
158–169 72–77 |
| XLS / 44 |
5′7″–5′11″ 170–180 |
158–169 72–77 |
| 2XL / 46 |
5′11″–6′3″ 180–190 |
165–176 75–80 |
| 3XL / 48 |
6′1″–6′5″ 185–195 |
176+ 80+ |
(A) Chest, (B) Waist and (C) Hip
| Size | (A) Chest in · cm |
(B) Waist in · cm |
(C) Hip in · cm |
|---|---|---|---|
| XS / 34 |
29–33 75–85 |
23–27 60–70 |
29–33 75–85 |
| S / 36 |
31–35 80–90 |
25–30 65–75 |
33–37 85–95 |
| M / 38 |
33–37 85–95 |
27–32 70–80 |
37–41 95–105 |
| MS / 38 |
33–37 85–95 |
27–32 70–80 |
37–41 95–105 |
| MT / 38 |
33–37 85–95 |
27–32 70–80 |
37–41 95–105 |
| ML / 40 |
35–39 90–100 |
29–33 75–85 |
41–45 105–115 |
| L / 42 |
35–39 90–100 |
29–33 75–85 |
41–45 105–115 |
| LS / 42 |
35–39 90–100 |
29–33 75–85 |
41–45 105–115 |
| LT / 42 |
35–39 90–100 |
29–33 75–85 |
41–45 105–115 |
| XL / 44 |
37–41 95–105 |
31–35 80–90 |
45–49 115–125 |
| XLS / 44 |
37–41 95–105 |
31–35 80–90 |
45–49 115–125 |
| 2XL / 46 |
39–43 100–110 |
33–37 85–95 |
49–53 125–135 |
| 3XL / 48 |
41–45 105–115 |
35–39 90–100 |
53–57 135–145 |
How Aqua Lung measures
- (A) Chest: Measure around the widest part of the chest.
- (B) Waist: Measure around the waistline where your pants would rest.
- (C) Hip: Measure around the widest part of the hips.
From Aqua Lung’s chart: Sizes shown here are estimations
Source: Aqua Lung’s size chart (original chart).
Payment & Security
Payment methods
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Product Information
The Aqualung Hydroflex Men's Full Dive Wetsuit is a 3mm full wetsuit built from super-stretch neoprene that stretches up to 250% more than standard neoprene, uses a PAH-free, non-petroleum-based formula, and features a coral-reef inspired design. It is available in Black/Blue from size S (Small) to 3XL (3X-Large).
Who it is for
Aqualung built the Hydroflex for men divers, whether beginner or experienced, who want a 3mm suit with flexible, super-stretch neoprene for comfort both in and out of the water. O-ring seals at the wrist and ankles limit water entry, and the coral-reef inspired design adds style.
Key details
- Neoprene: 3mm super-stretch, PAH-free, non-petroleum-based formula.
- Seams: Flatlock stitching for comfort against bare skin.
- Zipper: Heavy duty #10 zipper with a pull loop for easier opening and closing.
- Collar: V-shaped collar for added comfort.
- Seals: O-ring seals at the wrist and ankle to limit water entry.
- Knee panels: Powertex reinforced rubber panels for abrasion resistance and flexibility.
- Chest panel: Laminated panel for wind and abrasion resistance.
- Printed panels: Shoulder print protects against BC abrasion; wrist print helps keep a dive computer in place.
Compatibility and sizing
The Hydroflex Men's wetsuit is offered in the Black/Blue colorway in sizes S (Small), M (Medium), ML (Medium Large), L (Large), XL (X-Large), 2XL (2X-Large), and 3XL (3X-Large).
DiveCatalog.com is an authorized Aqualung dealer and a dive shop in Irvine, California, serving divers since 2003. Call 888-701-4017 or chat with us if you have questions about fit or sizing before you order.
- Super-stretch neoprene. 3mm neoprene stretches up to 250% more than standard neoprene for added flexibility.
- PAH-free formula. Non-petroleum-based 3mm neoprene uses a PAH-free formula.
- Flatlock stitching. Seams are flatlocked for comfort against bare skin.
- V-shaped collar. Designed for better comfort at the neck.
- O-ring wrist and ankle seals. Help limit water entry at the cuffs.
- Zipper pull loop. A loop on the zipper makes it easier to open and close.
- Laminated chest panel. Adds wind and abrasion resistance.
- Powertex knee panels. Reinforced rubber knee panels give excellent abrasion resistance with increased flexibility.
- Printed shoulder panels. Protect against abrasion from a BC.
- Printed wrist panels. Help keep a dive computer in place.
- Heavy duty #10 zipper. Includes a loop for ease of opening and closing.
| Thickness | 3mm |
| Neoprene | Super-Stretch, PAH-free, non-petroleum-based |
| Zipper | Heavy Duty #10 |
| Knee Pads | Powertex Reinforced Rubber |
| Seams | Flatlock |
| Collar | V-shaped |
| Seals | O-ring at wrist and ankle |
| Chest Panel | Laminated |
| Color | Black/Blue |
| Sizes | S, M, ML, L, XL, 2XL, 3XL |
| Brand | Aqualung |
| Product Type | Men's Full Wetsuit |
⚠️ 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 Hydroflex Men's wetsuit come in?
The Hydroflex Men's Full Dive Wetsuit is offered in the Black/Blue colorway in sizes S (Small), M (Medium), ML (Medium Large), L (Large), XL (X-Large), 2XL (2X-Large), and 3XL (3X-Large). Check the size chart or call us if you are between sizes.
What makes the neoprene in the Hydroflex wetsuit different from standard neoprene?
The Hydroflex uses a 3mm super-stretch neoprene that stretches up to 250% more than standard neoprene, giving it added flexibility. It also uses a PAH-free, non-petroleum-based formula rather than a standard petroleum-based neoprene.
What kind of zipper does the Hydroflex wetsuit use?
It uses a heavy duty #10 zipper with a loop attached to the zipper pull, which makes it easier to grip and operate the zipper when opening or closing the suit.
Does the Hydroflex wetsuit have extra protection at the knees?
Yes, it has Powertex reinforced rubber knee panels that give excellent abrasion resistance with increased flexibility.


















