The Mares Flexa Vest 3mm Men is built for divers who want more warmth without giving up flexibility. Made from 100% 3 mm Ultrastretch neoprene, it works as an additional layer under a Flexa suit to improve heat retention on colder dives, while the integrated hood and Glideskin face seal help keep exposure more controlled.
Product Overview
The Flexa Vest is designed to maximize warmth on cold-water dives by adding a simple but effective thermal layer to an existing scuba wetsuit setup. Built from 100% 3 mm Ultrastretch neoprene, it balances insulation with the flexibility needed for comfortable movement during long surface intervals, entries, descents, and extended time in the water.
Its main role is straightforward: wear it as an additional layer under a Flexa suit when conditions are cooler than your primary exposure protection can comfortably handle on its own. The integrated hood adds valuable head coverage, and the Glideskin seal around the face helps create a closer, more comfortable barrier against water movement in one of the most exposed areas.
For divers building a more versatile cold-water kit from our broader range of scuba equipment, the Flexa Vest is a practical way to extend comfort without overcomplicating the rest of the setup. It is best suited to wetsuit divers who want better heat retention, more head protection, and a cleaner seal around the face when conditions start pushing beyond the comfortable limit of a single suit alone.
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Related Underwater Gear Categories:
- Comprehensive Range of Mares Gear
- Extensive Collection of Scuba Wetsuits
- Dive Travel Packages with Bluewater Dive Travel
Mares Flexa Vest 3mm Men Specifications
Construction
- Model: Man
- Product Type: Hooded thermal vest
- Neoprene Thickness: 3 mm
- Material: Ultrastretch Neoprene
Thermal Design
- Primary Purpose: Enhanced heat retention for cold-water diving
- Layering Use: Additional layer under Flexa suits
- Hood: Integrated hood included
Panel Details
- Face Seal: Glideskin seal around the face
- Hood: Integrated
- Wrist Grip Areas: No
- Hood Clip: No
- Chest Loading Pad: No
- 1 × Mares Flexa Vest 3mm Men
Mares Flexa Vest 3mm Men Size Guide
Use the chart below as a starting point for fit. The `US Approx.` column is a general comparison only; for the best fit, match your body measurements to the A, B, C, and D values first.
How to Measure
- A - Height: Stand straight without shoes and measure from the top of your head to the floor.
- B - Chest: Measure around the fullest part of your chest, keeping the tape level under your arms.
- C - Waist: Measure around your natural waist at the narrowest point.
- D - Hips: Measure around the fullest part of your hips and seat.
| IT | EU | US Approx. | A - Height | B - Chest | C - Waist | D - Hips |
|---|---|---|---|---|---|---|
| 2 | S | US 36-38 | 5 ft 9 in (175 cm) | 37 in (93 cm) | 29 in (73 cm) | 36 in (91 cm) |
| 3 | M | US 38-40 | 5 ft 10 in (178 cm) | 38 in (98 cm) | 31 in (78 cm) | 38 in (96 cm) |
| 3W | MW | US 42 | 5 ft 10 in (178 cm) | 42 in (106 cm) | 34 in (86 cm) | 41 in (104 cm) |
| 3L | MLO | US 38-40 Tall | 5 ft 11 in (181 cm) | 38 in (98 cm) | 31 in (78 cm) | 38 in (96 cm) |
| 4 | ML | US 40 | 5 ft 11 in (181 cm) | 40 in (102 cm) | 32 in (82 cm) | 39 in (100 cm) |
| 4W | MLW | US 44 | 5 ft 11 in (181 cm) | 43 in (111 cm) | 35 in (90 cm) | 43 in (108 cm) |
| 4L | MLLO | US 40 Tall | 6 ft 0 in (184 cm) | 40 in (102 cm) | 32 in (82 cm) | 39 in (100 cm) |
| 5 | L | US 42 | 6 ft 0 in (184 cm) | 42 in (106 cm) | 34 in (86 cm) | 41 in (104 cm) |
| 5W | LW | US 46 | 6 ft 0 in (184 cm) | 45 in (114 cm) | 37 in (94 cm) | 44 in (112 cm) |
| 5L | LLO | US 42 Tall | 6 ft 2 in (187 cm) | 42 in (106 cm) | 34 in (86 cm) | 41 in (104 cm) |
| 6 | XL | US 44 | 6 ft 2 in (187 cm) | 43 in (110 cm) | 35 in (90 cm) | 43 in (108 cm) |
| 6W | XLW | US 48 | 6 ft 2 in (187 cm) | 46 in (118 cm) | 39 in (98 cm) | 46 in (116 cm) |
| 6L | XLLO | US 44 Tall | 6 ft 3 in (190 cm) | 43 in (110 cm) | 35 in (90 cm) | 43 in (108 cm) |
| 7 | 2XL | US 46 | 6 ft 3 in (190 cm) | 45 in (114 cm) | 37 in (94 cm) | 44 in (112 cm) |
| 7W | 2XLW | US 50 | 6 ft 3 in (190 cm) | 48 in (122 cm) | 40 in (102 cm) | 47 in (120 cm) |
| 7L | 2XLLO | US 46 Tall | 6 ft 4 in (193 cm) | 45 in (114 cm) | 37 in (94 cm) | 44 in (112 cm) |
| 8 | 3XL | US 48 | 6 ft 4 in (193 cm) | 46 in (118 cm) | 39 in (98 cm) | 46 in (116 cm) |
Fit code note: `W` indicates a wider fit. `LO` indicates a longer or taller version of the same base size. US size comparisons are approximate.
FAQ
It is designed to maximize warmth on cold-water dives by adding thermal protection to your existing exposure setup. Mares positions it as an extra layer under a Flexa suit to improve heat retention without sacrificing flexibility.
Its intended role is as a supplemental thermal layer rather than a primary exposure suit. Most divers will get the best result by wearing it under a Flexa wetsuit when they need more warmth than the main suit provides on its own.
Yes. It includes an integrated hood, which adds useful insulation around the head during colder dives and helps round out the vest's role as a true thermal layering piece rather than just a sleeveless add-on.
That is the point of the 100% 3 mm Ultrastretch neoprene construction. It is meant to improve insulation while still allowing the flexibility needed for comfortable movement through the dive and during gearing up.
Yes. The vest is specifically positioned as a heat-retention upgrade for colder conditions, especially when you want to stretch the range of your current wetsuit setup for longer or more demanding dives.
The Glideskin seal is there to create a more secure, comfortable seal around the face. In practice, that helps reduce water movement at a sensitive point and supports the vest's overall thermal performance during colder dives.
It is best for wetsuit divers who already have a Flexa suit and want an easier way to gain extra warmth, head coverage, and facial sealing comfort for colder dives. If you want help matching it to your setup, email sales@bluewaterphotostore.com.
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