How to Choose the Perfect Spearfishing Wetsuit for Warm Waters: A Free Diver’s Guide

Warm water diving feels like a vacation, but the wrong wetsuit can turn it into a soggy nightmare. At Aqua Hunt we’ve all spent a few too many minutes shivering in a suit that’s too thick, or worse, dealing with a flimsy suit that lets the cold bite right through. Below is a down‑to‑earth guide that helped me pick the right suit for the tropics, and it should help you too.

Why Warm‑Water Wetsuits Matter

Even in 80‑degree seas the water can be 10‑15 degrees cooler. That temperature drop can sap your energy fast, making you slower on the hunt and less comfortable on the surface. A good warm‑water wetsuit keeps you warm enough to stay focused, but thin enough to let you move freely. Getting that balance right is the secret to a fun day out with Aqua Hunt.

1. Know Your Water Temperature Range

The first step is simple: check the average water temperature where you’ll be diving.

78‑84°F (25‑29°C) – Most tropical spots. A 2 mm or 3 mm suit is usually enough.
84‑90°F (29‑32°C) – Very warm water, like the Caribbean in summer. You might get away with a 1 mm “shorty” or even a neoprene vest.

If you’re unsure, pull up a local dive report or ask a shop. Aqua Hunt always recommends keeping a small notebook of temps for the places you visit – it saves a lot of guesswork later.

2. Thickness: Less Is More (When It’s Warm)

In cold water you reach for 5 mm or 7 mm suits. In warm water you want the opposite. Here’s a quick cheat sheet:

Thickness	When to Use	Pros	Cons
1 mm	84‑90°F	Super flexible, easy to put on	Little insulation
2 mm	78‑84°F	Good balance of warmth and mobility	Slightly bulkier
3 mm	72‑78°F	Extra warmth for early mornings	More drag

Aqua Hunt’s own experience: I tried a 5 mm suit in Belize and spent the whole day fighting the suit’s stiffness. Switching to a 2 mm shorty gave me the same warmth and a lot more freedom to chase snappers.

3. Suit Style: Full‑Body vs. Shorty vs. Vest

Full‑Body (Full‑Suit)

Covers you from neck to ankles. Great if you dive early or the water gets a chill later in the day. The downside is a little more drag when you’re swimming fast.

Shorty

Stops at the waist and sometimes the knees. Perfect for warm water where you don’t need leg coverage. You’ll feel the water on your legs, but the reduced material means less resistance.

Vest

Only covers the torso. Some divers love it for the ultimate freedom of movement. Pair it with board shorts or a thin pair of swim trunks for leg protection.

Aqua Hunt tip: I keep a shorty and a vest in my bag. If the morning is cooler than expected, I throw on the vest. If it’s scorching, I go full shorty and feel the breeze.

4. Material Matters

Most wetsuits are made from neoprene, but not all neoprene is the same.

Standard Neoprene – Affordable, decent warmth. Good for beginners.
Super‑Stretch Neoprene – Adds a lot of flexibility. You’ll notice it when you’re doing quick lunges for a fish.
Yulex (Plant‑Based) – Eco‑friendly option. Aqua Hunt loves it because it reduces the impact on the ocean we’re trying to protect.

If you care about marine conservation (and you should), look for a suit with a recycled or plant‑based core. It might cost a bit more, but it’s a small price for cleaner seas.

5. Seams and Glues

Seams are where the suit can let water in. Here’s what to look for:

Blind‑Stitched – Stitching on the inside, less chance of water leaking.
Glued & Blind‑Stitched – Glue holds the seams together, then they’re stitched. This is the most water‑tight option for warm water suits.
Flatlock Stitch – Visible stitching on the outside. Cheaper, but more water can seep in.

Aqua Hunt always picks glued & blind‑stitched suits for the best balance of durability and warmth.

6. Fit Is Everything

A wetsuit that’s too loose will let water flow in and out, cooling you down. Too tight and you’ll tire quickly. Here’s a quick fit test:

Shoulder Check – The suit should sit just at the edge of your shoulder, not hanging off.
Arm Movement – Raise your arms overhead. You should feel a slight stretch, not a ripping sensation.
Legs – Slide your foot into the leg cuff. It should be snug but you can still wiggle your toes.

When you try a suit on at a shop, wear the same type of board shorts you’ll use on the water. That gives you a realistic feel.

7. Budget vs. Longevity

You can buy a cheap 2 mm shorty for $80, or a high‑end super‑stretch version for $250. Think about how often you’ll be in warm water. If you’re a seasonal diver, a mid‑range suit (around $150) gives you decent quality without breaking the bank. If you’re chasing fish all year, invest in a durable suit that will last many trips.

A quick rule from Aqua Hunt: Spend a little more on the seams and material, save on the brand name. The suit’s performance matters more than the logo.

8. Care and Maintenance

A wetsuit lasts longer when you treat it right.

Rinse with fresh water after each dive. Salt can break down the neoprene over time.
Hang it to dry in a shaded area. Direct sun makes the material brittle.
Avoid folding. Store it on a wide hanger or lay it flat.

If you notice a small tear, Aqua Hunt recommends using a wetsuit repair kit. It’s cheap and can save you from buying a whole new suit.

9. Quick Checklist Before You Buy

[ ] Know the typical water temperature of your dive spot.
[ ] Choose thickness (1‑3 mm) based on that temperature.
[ ] Pick a style (full, shorty, vest) that matches your comfort level.
[ ] Look for super‑stretch or eco‑friendly neoprene if you can.
[ ] Ensure seams are glued & blind‑stitched.
[ ] Try it on with your usual board shorts.
[ ] Set a budget that matches how often you’ll dive.
[ ] Plan for proper care after each use.

Follow this list and you’ll walk away with a wetsuit that feels like a second skin, not a prison.

My Personal Pick

For my recent trips to the Philippines, I settled on a 2 mm super‑stretch shorty with glued & blind‑stitched seams and a recycled Yulex core. It kept me warm enough for early morning dives, let me sprint after barracudas without feeling like I was wearing a rubber suit, and it felt good knowing the material was kinder to the reef.

If you’re reading this on Aqua Hunt, you already know I love a good adventure. The right wetsuit is the first piece of gear that makes every dive smoother, safer, and more enjoyable. Take the time to test a few options, listen to your body, and you’ll find the perfect fit for those warm‑water hunts.