Mares 5mm Graph-Flex Women’s Full Wetsuit

Mares 5mm Graph-Flex Women's Full Wetsuit: A Graphene-Infused Neoprene Suit Built for Cool-Water Diving

The Mares 5mm Graph-Flex Women's Full Wetsuit is a neoprene jumpsuit designed for women who dive regularly in cooler water and want serious thermal protection without sacrificing freedom of movement.

If you are a recreational diver who finds yourself consistently cold at depth, or someone who dives in water where a 3mm suit just isn't enough, this is the kind of suit worth understanding properly before you buy.

What Makes This Suit Different: The Graphene Inner Layer

The defining feature of the Graph-Flex line is graphene fiber woven into the inner layers of the neoprene. Graphene is a carbon-based material known for conducting and reflecting heat efficiently.

In practical terms, the inner lining is designed to capture body heat and reflect it back toward you rather than letting it dissipate into the water. This is a different approach from a standard neoprene suit, which relies almost entirely on trapped water and the thickness of the foam to keep you warm.

Whether that translates to a meaningfully warmer experience than a conventional 5mm suit will depend on your own circulation and the conditions you dive in. What you can take at face value is that the material is real and the design intent is clear: warmth is the priority of this suit.

Construction and Seams

The suit is built from nylon-2 neoprene rubber, which means the neoprene has a nylon lining on both the inside and outside. That double-layer construction improves durability and makes the suit easier to slide on over skin.

The seams are sewn and sealed. Sewn seams alone can allow small amounts of water to trickle through the stitching holes. Sealing closes those pathways, which reduces flushing, the process where cold water enters and displaces the warm layer your body has built up inside the suit. Sealed seams matter more the colder the water is.

The suit has a clean, minimal aesthetic in black and gray with restrained graphics.

Entry and Fit

Getting into a 5mm suit can be a real workout. The Graph-Flex uses a back-zipper entry with a pull-tab leash, which lets you reach the zipper yourself without needing a buddy to help. That is a practical convenience, especially if you are gearing up on a boat or at the shore on your own.

A full wetsuit covers your entire body from wrists to ankles, with an integrated torso. There are no separate jacket and pants to align or seal at the waist, which means fewer cold spots and a more consistent thermal barrier across your core.

The suit is available in multiple sizes cut specifically for a woman's body. Fit is critical with any wetsuit. A suit that is too loose will flush constantly and leave you cold. A suit that is too tight will restrict your breathing and exhaust you. Take your measurements carefully and compare them against Mares' size chart before ordering.

Water Temperature and Conditions

At 5mm, this suit is built for cool to cold recreational diving. As a general guide, 5mm neoprene is typically comfortable in water temperatures from around the mid-50s to mid-60s Fahrenheit (roughly 13 to 18 degrees Celsius), though your personal cold tolerance will shift that range in either direction.

If you dive in warmer tropical water, this suit will likely leave you overheated. If you regularly encounter genuinely cold water below 50°F (10°C), a drysuit may serve you better. The Graph-Flex sits in the range between those two extremes and does it well.

Who This Suit Is For

This suit makes the most sense for a recreational woman diver who runs cold, dives in temperate or cool conditions, and wants a well-constructed suit with a thermal edge over standard neoprene.

It is less suited to warm-water travel diving, and it is not a drysuit replacement for genuinely cold-water or technical diving. If you are comfortable in a 3mm suit where you currently dive, the extra thickness and the Graph-Flex's warmth focus may be more than you need.

But if you have ever cut a dive short because you were cold, or you know that thermal comfort is what stands between you and actually enjoying a full dive, this suit is worth serious consideration.