Aqua Lung 3mm HydroFlex Super-Stretch Wetsuit 4040720 150953

Mfg Part #: 40407
  • 100% HydroFlex (super-stretch) will stretch 250% more than standard neoprene
  • Pre-bent arms and knees
  • Entire suit double glued and blind stitched inside and out
  • Adjustable velcro collar - helps keep cold out
  • Non-magnetic #10 YKK zipper
  • Back zip with leash (pull cord)
  • Can be worn comfortably by multiple persons with different body types
  • Flexible molded rubber knee pads provide exceptional grip and durability

Customer Reviews for Aqua Lung 3mm HydroFlex Super-Stretch Wetsuit:

See the top 20 most helpful scuba gear reviews

Average Customer Review: based on 5 reviews.

Rating: Aqua Lung 3mm HydroFlex Super-Stretch Wetsuit Review - Scuba Gear Customer Reviews
Reviewer: Edward Fangman
I was used to only a shorty and a skin, but diving in the National Aquarium required a full wet suit. I ordered the Aqua Lung Hydroflex 3 mm from and while it was tight and hard to get on at first, it soon loosened up, especially after 8 dives off Marathon Key. It is one of the best deals I have gotten. Looking forward to trying it out in Cozumel real soon.

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2 out of 3 people found this review helpful.

Rating: Excellent fitting wetsuit
Reviewer: David O.
I purchased this xl wetsuit to wear on my tropical referral open water certification in Waikiki Hawaii. I am 61" tall and 210lbs and the cel fit me perfectly. The smooth running zipper was surprising and the large Velcro zipper cover at the neck kept the suit securely closed. The articulated as and legs are the only way to go for comfort and range of motion. The temperature was perfect with only one of our early morning dives leaving me a little cool.... Not cold. Other wetsuits I saw on my trip had more skookum knee pads but I didnt spend much time on my knees anyways.

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27 out of 42 people found this review helpful.

Rating: Aqua Lung 3mm HydroFlex
Reviewer: Mercedes M.
I bought this suit a few weeks ago and have gotten many uses out of it! Its amazing, the size fits perfectly. While donning and doffing is a concern when purchasing a wetsuit this one goes on and off with ease. Your boots and gloves should go over the ankles and wrists but it is an amazing wetsuit. Really comfortable and great quality. An excellent purchase for anyone looking at a 3mm.

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6 out of 13 people found this review helpful.

Rating: Aqua Lung 3mm HydroFlex Super-Stretch Wetsuit Review - Scuba Gear Customer Reviews
Reviewer: TaiYu Huang
tight, but Really comfortable and great quality and it was looking good for me.

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Rating: John D
Reviewer: John Dondero  -  View all my reviews
Perfect suit for our warm water diving. Two weeks of diving 3-4 times a day in total comfort.

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38 out of 76 people found this review helpful.

Questions and Answers for Aqua Lung 3mm HydroFlex Super-Stretch Wetsuit:

  • michelle:

    im a female 51", weigh approximately 175 pounds, chest size is 44.5" and waist is 40". which size aqua lung 3mm hydroflex super stretch wetsuit would you recommend?

    Arthur  (Certified Scuba Instructor at

    Hello, You should in a medium plus short wetsuit. Pinnacle and scubapro make sizes like this.

  • Myrna:

    Hi ,Im 130 lbs w/ bust size of 36" , waist of 39" what size should I need. Thanks Myrna

    Darrick  (Certified Scuba Instructor at

    Hello Myrna, in the AquaLung size chart you would be a XLarge Short. This suit is a closeout item limited to stock on-hand. I show that the size you need is no-longer made. If you are looking for a 3mm suit take a look at the: With this manufacture you would be a size Xlarge and we do have this one in-stock.

  • Sally:

    I am 54", 145lbs (athletic build). Waste - 32", Bust - 37". What size should I get? Im looking at the Aqua Lung 3mm Hydroflex Super_Stretch Wetsuit.

    Arthur  (Certified Scuba Instructor at

    Hello, you would want a large. It may be a bit long though.

  • Jan:

    Do the wetsuits come in different lengths for each size?

    Bob  (Certified Scuba Instructor at

    Yes, all dimensions will be altered with each size change.

  • TOM:

    I am 5 ft 11 and 175# would I take a large or LG/MED

    Bob  (Certified Scuba Instructor at

    The most important measurements any time you purchase a wetsuit using the manufacturer''s sizing charts will always be your waist and chest/bust measurements. The suit needs to fit your torso correctly in order to do its job properly. Keep in mind there is no such thing as a comfortable wetsuit on the surface. You want it to be snug, but not cut off circulation to your extremities. The more snug it is, the thinner the layer of water your body is heating. If its too loose you will remain warm for awhile, but eventually your body won''t be able to keep up with the greater amount of water flowing through the suit and you''ll wind up getting cold faster. After that your height is a secondary measurement. The manufacturers realize that generally speaking your boots and gloves can overlap slightly short arms and legs, or the diver can push or roll up longer sleeves and/or arms if need be. Weight is a measurement the diver can usually ignore. It really has little to no bearing what so ever on the sizing and fit of your suit. The manufacturers do not take into account muscle being more dense than fat, so based simply on fitness levels 2 people can be the exact same size but quite different in weight. This measurement should only be used if the person is literally on the fence between 2 sizes in all categories.

  • Steve:

    Looking for a combo 5/3mm wet suit for my wife. Rented in the past but cannot find to purchase. Do you have then available?

    Darrick  (Certified Scuba Instructor at

    Hi Steve, Yes we have many in stock ranging from woman's xs through 2xl in Black/Charcoal and Black/Pink.

  • Greg:

    from the sizing chart, it looks like i need a mens "medium large long." i do not see that option in the down menu. do you carry the medium large long?

    Darrick  (Certified Scuba Instructor at

    Hello Greg, this suit does not come in a size long or short version. The size chart is there general size chart for all of there suits. If you are looking for the suit that does come in a long version take a look at:

  • Jennifer:

    I feel the cold badly. Is this wetsuit suitable for snorkeling in 70 degree water?

    Bob  (Certified Scuba Instructor at

    No. Typically even in 70 degree water a 7mm suit is used. At the very least, a 5mm suit.

  • April:

    I am 5 7" and 140 pounds. What size in this wetsuit would fit me?

    Darrick  (Certified Scuba Instructor at

    Hello April, when you are sizing a wetsuit or dive skin. The two most important measurements are going to be your chest/bust and waist. Height is a secondary measurement and weight is the last measurement you take into account.

  • April:

    I am 5 7" female and weigh 140 pounds. What size wetsuit would you suggest?

    Darrick  (Certified Scuba Instructor at

    Hello April, when you are sizing a wetsuit or dive skin. The two most important measurements are going to be your chest/bust and waist. Height is a secondary measurement and weight is the last measurement you take into account.

  • Jennifer:

    How much does this wetsuit weigh? Womens medium. Thank you Jennifer

    Darrick  (Certified Scuba Instructor at

    Hello Jennifer, the women medium is only 2 pounds.

The Hydroflex 3mm jumpsuit packs a lot of features for a very good price. The men’s black/green color option anchors our travel-specific line of products while the women’s black/pink/charcoal compliments our lady’s product assortment. With superstretch neoprene and stylish graphics, you’re ready to hit the lower latitudes.

3mm super-stretch neoprene used throughout

Hook and loop adjustable neck

Heavy duty #10 zipper

Flatlock stitch for comfort

Back zipper water shield

Pre-bent anatomic legs and arms

The knee pads are durable and stretchy for comfort

Wetsuit Care and Maintenance

There are several different types of materials used in wetsuits to achieve specific functions. It is helpful to better understand each of these materials in order to properly care for them.

Neoprene - Neoprene is the base material that virtually all wetsuits are made of. Neoprene is a type of rubber foam and is typically laminated with other materials depending on the desired function of the material.
Standard Nylon - A standard nylon outer lining is very durable against normal wear and tear. Normal care must be taken to prevent snagging, abrasion, and cuts.
Skin material - 'skin' material may be used either inside our outside of your wetsuit and often around the wrists, ankles, and neck area. This material has a rubber like appearance either being smooth or textured, and is commonly referred to as 'skin-in' or 'skin-out'. 'Skin' neoprene material is typically used in areas where a water tight seal is desired or a benefit can be derived from it's water shedding properties. Some additional care is needed to prevent cutting, or abrasion of this material. Sharp fingernails may cut this material if care is not taken.
Thermo-skin - This material may be used inside of your wetsuit. Thermo-skin material has a silver-colored smooth skin type surface. This material has beneficial heat reflective properties and also provides a sealing surface similar to standard 'skin' materials. Some additional care is needed to prevent cutting, or abrasion of this material. Sharp fingernails may cut this material if care is not taken.
X-Flex or Iso-Flex Neoprene - X-Flex and Iso-Flex neoprene are special materials designed specifically to have a much higher rate of stretch than conventional materials. Due primarily to the looser nit needed to achieve this high degree of stretch; these materials may be more prone to snagging. Velcro may also cause some light snagging and pilling of the material. Some additional care is needed to prevent excessive abrasion or snagging.
Care before the Dive:

With any of the skin surfaces including Thermo-skin, care should be taken when donning the wetsuit to not snag the interior skin surfaces with a fingernail or toenail as this material can be cut. Avoid placing your wetsuit on or near any hot surfaces.
Care During the Dive:

The exterior surface of your wetsuit is designed to withstand the normal wear and tear you might encounter during a normal dive. Abrasion against sharp rocks or other sharp objects can cut or puncture the exterior nylon surface so reasonable care should be taken to avoid these situations. Small cuts or tears can be easily repaired with wetsuit glue. Ask your dive professional for assistance.
Care After the Dive:

When removing your wetsuit, first unzip all the zippers completely. Then remove one section at a time taking care to avoid puncturing any of skin surface panels with a fingernail.
Wetsuit Cleaning:

Salt water and especially chlorine can 'dry out' the neoprene material. When neoprene material 'dries out' it looses it's flexibility. To ensure the wetsuit material retains it's flexibility for a extended period of time, it is important to thoroughly soak and rinse the wetsuit.
Soak the wetsuit in a tub of warm fresh water (not over 120°F) for at least 15-20 minutes.
After soaking, thoroughly hose off the wetsuit with fresh water
Place the suit on a thick hanger with all the zippers open to ensure maximum air circulation and complete drying.
Wetsuit Storage:

Wetsuit material can develop a permanent crease if left folded for a extended period of time. It is best to store your wetsuit laying flat. If that is not possible, you can store your suit on a hanger. Use as thick a hanger as possible to better support the weight of the suit. The thicker the suit, the heavier, and therefore the thicker your hanger should be. There are several after-market hangers available designed specifically for this purpose.
Store in a cool, dry and protected place out of direct sunlight.
Do not store your wetsuit in garage if the garage is used to park a vehicle. The exhaust emissions from the vehicle can over time deteriorate the neoprene.
Wetsuit Zipper Care and Maintenance:

Zippers are designed to be pulled closed or open in a straight line. Try to avoid pulling on the zipper pulls at an excessive angle to their intended path of travel. It is best to ask your dive buddy for zipper assistance in either opening or closing the back-zipper of a one piece back-zipped jumpsuit.

Avoid any contact with oil, gasoline, aerosols, or chemical solvents.
Do not expose any part to aerosol spray, as some aerosol propellants attack or degrade rubber and plastic materials.
Do not use any type of alcohol, solvent or petroleum based substances to clean or lubricate any part.
Do not store your equipment near any oil, gasoline, chemicals, or solvents.

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