Mares Apnea Instinct 50 Lady Jacket
Mares Apnea Instinct 50 Lady Jacket - S5 is backordered and will ship as soon as it is back in stock.
Pickup currently unavailable at In Store
Mares freediving and spearfishing suits (Apnea Instinct, Explorer Camo, Merge). Mares sizes these S1–S8. These are body measurements, shown in inches with centimeters underneath.
Men’s sizes
Height
| Size | Height |
|---|---|
|
S2 Mares 2 |
5′8″ 173 cm |
|
S3 Mares 3 |
5′10″ 177 cm |
|
S4 Mares 4 |
5′11″ 181 cm |
|
S5 Mares 5 |
6′1″ 185 cm |
|
S6 Mares 6 |
6′2″ 189 cm |
|
S7 Mares 7 |
6′4″ 193 cm |
|
S8 Mares 8 |
6′6″ 197 cm |
Chest, waist and hips
| Size | Chest | Waist | Hips |
|---|---|---|---|
|
S2 Mares 2 |
36.7″ 93.3 cm |
29″ 73.7 cm |
35.9″ 91.3 cm |
|
S3 Mares 3 |
38.4″ 97.5 cm |
30.5″ 77.5 cm |
37.5″ 95.3 cm |
|
S4 Mares 4 |
40″ 101.5 cm |
32.1″ 81.5 cm |
39.2″ 99.5 cm |
|
S5 Mares 5 |
41.4″ 105.1 cm |
33.5″ 85.1 cm |
40.6″ 103.1 cm |
|
S6 Mares 6 |
43.2″ 109.7 cm |
35.1″ 89.1 cm |
42.4″ 107.7 cm |
|
S7 Mares 7 |
44.7″ 113.5 cm |
36.6″ 92.9 cm |
43.8″ 111.3 cm |
|
S8 Mares 8 |
46.3″ 117.7 cm |
38.2″ 97.1 cm |
45.4″ 115.3 cm |
Women’s sizes
Height
| Size | Height |
|---|---|
|
S1 Mares 1 |
5′4″ 163 cm |
|
S2 Mares 2 |
5′6″ 167 cm |
|
S3 Mares 3 |
5′7″ 171 cm |
|
S4 Mares 4 |
5′9″ 175 cm |
|
S5 Mares 5 |
5′10.5″ 179 cm |
|
S6 Mares 6 |
6′0″ 183 cm |
Chest (bust), waist and hips
| Size | Chest | Waist | Hips |
|---|---|---|---|
|
S1 Mares 1 |
30.3″ 76.9 cm |
26.5″ 67.4 cm |
33.1″ 84 cm |
|
S2 Mares 2 |
32.1″ 81.5 cm |
28″ 71 cm |
34.6″ 88 cm |
|
S3 Mares 3 |
33.9″ 86.1 cm |
29.4″ 74.8 cm |
36.1″ 91.6 cm |
|
S4 Mares 4 |
35.5″ 90.1 cm |
30.8″ 78.2 cm |
37.6″ 95.6 cm |
|
S5 Mares 5 |
37.2″ 94.5 cm |
32.3″ 82 cm |
39.2″ 99.6 cm |
|
S6 Mares 6 |
38.9″ 98.9 cm |
33.9″ 86.2 cm |
40.8″ 103.6 cm |
Source: Mares’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″.
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Product Information
The Mares Apnea Instinct 50 Lady Jacket is the women's top half of a two-piece freediving wetsuit, built from 5mm open cell neoprene with a black lined exterior and a pre-shaped cut designed specifically for the female form.
Who it is for
This jacket is for women freedivers who want a snug, low-flush fit for demanding dives rather than a one-piece suit. The female-specific pattern follows the body's natural shape, and the open cell interior creates a close, watertight seal that limits water infiltration and helps the suit hold warmth throughout a dive session.
Key details
- 5mm open cell neoprene body, with 3.5mm neoprene at the wrists and face holes
- Black lined exterior for abrasion resistance and durability, paired with the open cell interior for superior warmth and a snug hold
- Durable double lined beaver tail closure with a quick release frog
- Maximum elasticity lets the jacket move naturally with the body, reducing resistance and conserving energy on deep or long dives
Compatibility and sizing
The jacket is sold in sizes S1 through S5. It is the jacket component of the two-piece Instinct 50 Lady wetsuit, jacket code 422461, and pairs with the matching Instinct 50 Lady pants, code 422462, which are sold separately.
DiveCatalog.com is an authorized Mares dealer and a dive shop in Irvine, California, open since 2003. Call or chat with us at 888-701-4017 if you need help choosing the right size or confirming fit with the matching pants.
- Female-specific pattern: The pre-shaped cut follows the natural curves of the female form for an excellent fit and improved mobility underwater.
- 5mm open cell neoprene: The main body uses 5mm open cell neoprene for a close, watertight seal that limits cold water infiltration.
- Thinner wrists and face: Neoprene is 3.5mm at the jacket's wrists and face holes.
- Lined exterior: The outer layer is lined in black, adding abrasion resistance and durability for repeated dive use.
- Beaver tail closure: A durable double lined beaver tail closure with a quick release frog.
- High elasticity: The neoprene stretches with the body, reducing resistance and conserving energy during demanding freedives.
- Thermal performance: The open cell interior and overall construction give the jacket strong thermal properties along with resistance to compression at depth.
| Type | Jacket |
| Model | Lady |
| Gender | Women's |
| Thickness | 5mm (3.5mm at wrists and face holes) |
| Internal Material | Open cell neoprene |
| External Material | Black lined exterior |
| Closure | Double lined beaver tail with quick release frog |
| Wrist Grip Areas | No |
| Knee Protectors | No |
| Hood Clip | No |
| Soft Edge | No |
| Chest Loading Pad | No |
| Jacket Code | 422461 |
| Pants Code | 422462 |
| Available Sizes | S1, S2, S3, S4, S5 |
⚠️ 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 does the Mares Apnea Instinct 50 Lady Jacket come in?
This jacket is available in sizes S1, S2, S3, S4, and S5. Because it uses open cell neoprene, it should fit very snugly with no loose pockets at the armpits or lower back. If you are between sizes or unsure which size matches your measurements, call DiveCatalog.com for sizing help before you buy.
Do I need lubricant or a special technique to put on an open cell wetsuit?
Yes, most divers use a diluted conditioner, shampoo, or dedicated wetsuit lubricant with water to help open cell neoprene slide on, since the interior is designed to grip the skin tightly once worn. Work the jacket on in small sections rather than yanking on one spot.
Does the Instinct 50 Lady Jacket come with matching pants?
No, this listing is for the jacket only, code 422461. The matching Instinct 50 Lady pants, code 422462, complete the two-piece freediving suit and are sold as a separate item, so you can order the jacket alone or pair it with the pants to build the full suit.
Why is the neoprene thinner at the wrists and face than on the rest of the jacket?
The wrists and face opening use 3.5mm neoprene instead of the 5mm used on the rest of the jacket body.












