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Waterproof Wetsuit #16 of 26 in Exposure Suits

Waterproof W1 Wetsuit

The Waterproof W1 is a solid 5mm wetsuit built for divers who need reliable thermal protection and durability in temperate to cool waters.

Waterproof W1 Wetsuit
Full specification 5 entries
Neoprene Thickness5mm
Seam TypeGlued and Blind-Stitched (GBS)
ZipperYKK #10 Front Zip
Fit TypeAnatomical Pre-Bent
Recommended Water Temp14-20°C

At a glance

Waterproof W1 Wetsuit is a wetsuit from Waterproof, rated 4.4 out of 5 and placed 16 of 26 in our exposure suits shortlist. Its defining number is neoprene thickness: 5mm. It scores hardest on build quality (89/100) and softest on value for money (50/100). The clearest advantage divers report: excellent thermal insulation in cold water.

What the wetsuit actually gives you

015mm double-lined neoprene construction
02Glued and blind-stitched (GBS) seams
03Anatomical pre-bent knee design
04Adjustable neck closure with key loop
05Reinforced knee pads for durability
06YKK #10 metal front zipper

Where it wins and where it costs you

What works
Excellent thermal insulation in cold waterFlexible neoprene allows full range of motionSeams resist water seepage effectivelyDurable knee reinforcement withstands abrasionTrue-to-size consistent fit across sizes
What it costs you
Bulkier than thinner 3mm suitsFront zipper can be stiff when newNot ideal for tropical warm-water divingHigher price point than entry-level suits
Our verdict

The Waterproof W1 is a solid 5mm wetsuit built for divers who need reliable thermal protection and durability in temperate to cool waters. Its GBS seams and anatomical cut deliver a secure, flexible fit, making it a dependable choice for regular scuba divers, though it may feel excessive for tropical dives.

Full review: Waterproof W1 Wetsuit

The Waterproof W1 is a purpose-built scuba diving wetsuit crafted for divers who demand reliable thermal protection without sacrificing mobility beneath the surface. Constructed from high-density neoprene, this suit is engineered to trap a thin layer of water against the skin, which your body heat warms to create an insulating barrier against cold currents and shifting thermoclines. The panel construction follows the natural contours of the body, reducing bulk at the joints while reinforcing high-wear zones like the knees, elbows, and shoulders, so divers can move through fin kicks, buoyancy adjustments, and equipment checks with minimal drag or restriction.

What sets the Waterproof W1 apart is its attention to seam integrity and flexibility, two factors that matter most once you're descending past the first few meters. The suit uses glued and blind-stitched seams, which are further taped internally to prevent water infiltration at pressure-sensitive points, keeping cold flushes to a minimum during extended dives. The neoprene itself is a limestone-based compound, chosen for its superior stretch recovery and resistance to compression at depth, meaning the suit retains its insulating loft even when subjected to the pressures found in deeper scuba profiles. A smooth-skin chest panel cuts wind chill during surface intervals, while the interior lining wicks moisture and speeds up the process of pulling the suit on and off after a long day of multiple tank dives.

Beyond the technical construction, the Waterproof W1 is designed with the practical realities of dive travel and boat operations in mind. Reinforced knee pads stand up to repeated boarding maneuvers and rocky shore entries, while the color-blocked panel design improves underwater visibility among a dive group, a small but valuable safety feature in low-light or silty conditions. The zipper backing is treated to resist salt corrosion, extending the suit's working life across seasons of saltwater exposure, and the cut is tailored specifically for the range of motion divers need when reaching for a console, deploying an SMB, or adjusting a mask mid-dive. Altogether, the Waterproof W1 reflects a design philosophy centered on durability, warmth retention, and freedom of movement, making it a dependable choice for scuba divers who log serious hours underwater.

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