Henderson 3mm Thermoprene John Mens

Henderson Aquatics | SKU: A530MV-01-3XL

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$211.99

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Color: Black

Henderson 3mm Thermoprene John Mens-Black-3XL-

Size

Not sure of your size? Matched to Henderson Aquatics’s size chart

Henderson wetsuit sizing for the Thermoprene, Thermoprene Pro, Greenprene, Aqualock and semi-dry lines. These are body measurements, shown in inches and pounds with centimeters and kilograms underneath. Centimeters and kilograms are rounded.

Men’s sizes

Height and weight

Size	Height	Weight
XS	5′5″–5′7″ 165–170 cm	125–135 lb 57–61 kg
S	5′7″–5′9″ 170–175 cm	135–150 lb 61–68 kg
M	5′9″–5′11″ 175–180 cm	150–170 lb 68–77 kg
MS	5′5.5″–5′7.5″ 166–172 cm	140–160 lb 64–73 kg
MT	6′1″–6′3″ 185–191 cm	160–180 lb 73–82 kg
ML	5′9.5″–5′11.5″ 177–182 cm	155–175 lb 70–79 kg
L	5′10″–6′0″ 178–183 cm	170–190 lb 77–86 kg
LS	5′7.5″–5′9.5″ 172–177 cm	160–180 lb 73–82 kg
LT	6′2″–6′4″ 188–193 cm	180–200 lb 82–91 kg
XL	5′11″–6′1″ 180–185 cm	190–210 lb 86–95 kg
XLS	5′8.5″–5′10.5″ 174–179 cm	190–210 lb 86–95 kg
XLT	6′2″–6′4″ 188–193 cm	200–220 lb 91–100 kg
2XL	5′11″–6′1″ 180–185 cm	210–230 lb 95–104 kg
2XLS	5′8.5″–5′10.5″ 174–179 cm	200–220 lb 91–100 kg
2XLT	6′2″–6′4″ 188–193 cm	220–240 lb 100–109 kg
3XL	5′11″–6′1″ 180–185 cm	230–250 lb 104–113 kg
4XL	5′11″–6′1″ 180–185 cm	250–270 lb 113–123 kg
5XL	5′11″–6′1″ 180–185 cm	270–290 lb 123–132 kg
6XL	5′11″–6′1″ 180–185 cm	290–325 lb 132–147 kg

Chest and waist

Size	Chest	Waist
XS	34–36″ 86–91 cm	29–31″ 74–79 cm
S	36–38″ 91–97 cm	31–33″ 79–84 cm
M	38–40″ 97–102 cm	33–35″ 84–89 cm
MS	38–40″ 97–102 cm	33–35″ 84–89 cm
MT	38–40″ 97–102 cm	33–35″ 84–89 cm
ML	39–41″ 99–104 cm	34–36″ 86–91 cm
L	40–42″ 102–107 cm	35–37″ 89–94 cm
LS	40–42″ 102–107 cm	35–37″ 89–94 cm
LT	40–42″ 102–107 cm	35–37″ 89–94 cm
XL	42–44″ 107–112 cm	37–39″ 94–99 cm
XLS	42–44″ 107–112 cm	37–39″ 94–99 cm
XLT	42–44″ 107–112 cm	37–39″ 94–99 cm
2XL	44–46″ 112–117 cm	39–41″ 99–104 cm
2XLS	44–46″ 112–117 cm	39–41″ 99–104 cm
2XLT	44–46″ 112–117 cm	39–41″ 99–104 cm
3XL	46–48″ 117–122 cm	41–44″ 104–112 cm
4XL	48–50″ 122–127 cm	43–46″ 109–117 cm
5XL	50–52″ 127–132 cm	45–48″ 114–122 cm
6XL	52–54″ 132–137 cm	47–50″ 119–127 cm

Women’s sizes

Height

Size	Height
2	5′5″–5′8″ 165–173 cm
4	5′5″–5′8″ 165–173 cm
6	5′5″–5′8″ 165–173 cm
6S	5′2.5″–5′5.5″ 159–166 cm
6T	5′9″–6′0″ 175–183 cm
8	5′5″–5′8″ 165–173 cm
8S	5′2.5″–5′5.5″ 159–166 cm
8T	5′9″–6′0″ 175–183 cm
10	5′5″–5′8″ 165–173 cm
10S	5′2.5″–5′5.5″ 159–166 cm
10T	5′9″–6′0″ 175–183 cm
12	5′5″–5′8″ 165–173 cm
12S	5′2.5″–5′5.5″ 159–166 cm
12T	5′9″–6′0″ 175–183 cm
14	5′5″–5′8″ 165–173 cm
16	5′5″–5′8″ 165–173 cm
18	5′5″–5′8″ 165–173 cm
20	5′5″–5′8″ 165–173 cm
22	5′5″–5′8″ 165–173 cm
24	5′5″–5′8″ 165–173 cm

Chest (bust), waist and hips

Size	Chest	Waist	Hips
2	27–29″ 69–74 cm	22–24″ 56–61 cm	30–32″ 76–81 cm
4	29–31″ 74–79 cm	24–26″ 61–66 cm	32–34″ 81–86 cm
6	31–33″ 79–84 cm	26–28″ 66–71 cm	34–36″ 86–91 cm
6S	31–33″ 79–84 cm	26–28″ 66–71 cm	34–36″ 86–91 cm
6T	31–33″ 79–84 cm	26–28″ 66–71 cm	34–36″ 86–91 cm
8	33–35″ 84–89 cm	28–30″ 71–76 cm	36–38″ 91–97 cm
8S	33–35″ 84–89 cm	28–30″ 71–76 cm	36–38″ 91–97 cm
8T	33–35″ 84–89 cm	28–30″ 71–76 cm	36–38″ 91–97 cm
10	35–37″ 89–94 cm	30–32″ 76–81 cm	38–40″ 97–102 cm
10S	35–37″ 89–94 cm	30–32″ 76–81 cm	38–40″ 97–102 cm
10T	35–37″ 89–94 cm	30–32″ 76–81 cm	38–40″ 97–102 cm
12	37–39″ 94–99 cm	32–34″ 81–86 cm	40–42″ 102–107 cm
12S	37–39″ 94–99 cm	32–34″ 81–86 cm	40–42″ 102–107 cm
12T	37–39″ 94–99 cm	32–34″ 81–86 cm	40–42″ 102–107 cm
14	39–41″ 99–104 cm	34–36″ 86–91 cm	42–44″ 107–112 cm
16	41–43″ 104–109 cm	36–38″ 91–97 cm	44–46″ 112–117 cm
18	43–45″ 109–114 cm	38–40″ 97–102 cm	46–48″ 117–122 cm
20	45–47″ 114–119 cm	40–42″ 102–107 cm	48–50″ 122–127 cm
22	47–49″ 119–125 cm	42–44″ 107–112 cm	50–52″ 127–132 cm
24	49–51″ 125–130 cm	44–46″ 112–117 cm	52–54″ 132–137 cm

Kids’ sizes

Height and weight

Size	Height	Weight
02	3′1″–3′9″ 94–114 cm	30–40 lb 14–18 kg
04	3′9″–4′2″ 114–127 cm	40–50 lb 18–23 kg
06	4′2″–4′5″ 127–135 cm	50–60 lb 23–27 kg
08	4′5″–4′8″ 135–142 cm	60–75 lb 27–34 kg
10	4′8″–4′11″ 142–150 cm	75–90 lb 34–41 kg
12	4′10″–5′1″ 147–155 cm	90–105 lb 41–48 kg
14	5′1″–5′4″ 155–163 cm	105–120 lb 48–54 kg
16	5′4″–5′7″ 163–170 cm	120–135 lb 54–61 kg

Source: Henderson’s official size chart. Heights are shown to the nearest inch (half inches kept where the brand prints them), other measurements to the nearest 0.1″ and pound.

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Payment & Security

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Product Information

The Henderson 3mm Thermoprene John is the base-layer piece of Henderson Aquatics' john-and-jacket wetsuit system, built from Thermoprene neoprene with 75% more stretch than standard neoprene, GBS-glued and blindstitched seams, and a hook-and-loop shoulder closure. It can be worn on its own in warm water or layered under the matching Thermoprene Men's Jacket for added warmth in colder conditions.

Who it is for

This John suits men who want a 3mm wetsuit piece that works alone for warm-water diving or as the base layer of a two-piece system when paired with the matching Thermoprene jacket for cold-water protection. The abrasion-resistant Thermoprene material and spandex trim are built into a suit meant for repeated use.

Key details

Thickness: 3mm Thermoprene neoprene
Seams: GBS-glued and blindstitched construction
Closure: hook-and-loop at the shoulder
Trim: spandex for added flexibility
Built-in Freedom Flex kneepads and a spine pad

Compatibility and sizing

The Henderson 3mm Thermoprene John is available in black in sizes XS, S, M, L, XL, 2XL, and 3XL. It is designed to be worn with the matching Thermoprene Men's Jacket as a john-and-jacket layering system.

DiveCatalog.com is an authorized Henderson Aquatics dealer and a dive shop in Irvine, California, open since 2003. Call or chat with us at 888-701-4017 if you have questions about sizing or how the John and Jacket layer together.

⚠️ 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 is a john-and-jacket wetsuit system?

A john-and-jacket system pairs this Thermoprene John base layer with a matching Thermoprene jacket worn over it. The John can be worn alone for warm-water diving, or layered with the jacket for extra warmth in colder water. The 3mm John is designed to be used with the matching Thermoprene Men's Jacket.

Can the Henderson 3mm Thermoprene John be worn without the jacket?

Yes. The Thermoprene John is built to be worn on its own in warm water, and it can also be layered under the matching Thermoprene Men's Jacket when colder water calls for extra warmth. This lets one 3mm John serve as a stand-alone suit or as the base of a two-piece system.

What thicknesses does the Thermoprene John come in?

The Thermoprene John is offered in 3mm, 5mm, and 7mm thicknesses, listed under SKU prefixes A530MV, A550MV, and A570MV. This listing is the 3mm version, SKU A530MV, available in sizes XS through 3XL in black.

What sizes are available for the Henderson 3mm Thermoprene John?

This 3mm Thermoprene John is available in black in sizes XS, S, M, L, XL, 2XL, and 3XL. Only the 7mm Thermoprene John extends to larger sizes; the 3mm and 5mm versions are offered in XS to 3XL.

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Size runs small. Go bigger.

Haven’t had a chance to open water yet. They are tight and seem to run small. I have another brand that bought L and had to return. These I bought M expecting similar, returned and am still tight in the L/XL

Great purchase and "Like New" as advertized.

Like dis

Like dis project

Excellent wetsuit but will it crush quickly like other wetsuits?

I purchased a BARE 5mm Reactive wetsuit (open box), which was like new, to replace my 1.5 yr old BARE 5mm Velocity wetsuit which had collapsed to only 2.5mm after 3 diving trips (~100 dives). The Reactive wetsuit is well constructed and very flexible. I had to increase the size of the Reactive suit, as it was smaller than the BARE Velocity suit of the same size. Tremendous customer service by Dive Catalog to exchange the wetsuit for proper size. I hope the Reactive suit does not crush so quickly like my other wetsuits (BARE, Henderson, Pinnacle). Hoping that the new technology in this suit will keep me warm below the thermocline.

Perfectly Built

Best of the many many diver hangers in my life. Easily supports my steel-plated BCD, while still donned with all of my accessories. No cracks, bends, or dents. Has even supported my BCD w/ a steel 100 tank attached (not recommended, for safety purposes, though).

Will continue to use this hanger for the long-term. No brainer.

Thickness	3mm (also offered in 5mm and 7mm)
Material	Thermoprene neoprene with GBS-glue sealing layer
Seam Construction	GBS-glued and blindstitched
Closure	Hook-and-loop shoulder closure
Trim	Spandex
Color	Black
Sizes Available	XS, S, M, L, XL, 2XL, 3XL
SKU Prefix	A530MV
Compatible Jacket	Thermoprene Men's Jacket (sold separately)