Most triathletes use too much wetsuit lube, and a large share of it ends up where it does nothing. A suit that felt secure in transition can rotate across the shoulders within the first 400 meters, and the swimmer blames the fit. The real culprit is often the lube. Lube is a donning and chafing tool. It doesn't reduce drag.
What Lube Actually Does
Wetsuit lube reduces friction between your skin and the inner lining of the suit. That friction works against you when you pull a tight collar over your head or push a snug ankle cuff past your heel. A small amount of water-based lube lets those edges slide into place without rolling or folding. Once the suit is on, water between your skin and the neoprene acts as its own lubricant, so the lube has already done most of its job before you get wet.
Lube also helps prevent chafing where the suit edge rubs skin, especially at the back of the neck and sometimes at the wrists or ankles. That's a comfort benefit. It won't change your split. A suit with excess lube on the arms or torso can move against you during the stroke, shifting where the shoulder panels sit and making you fight the suit to keep your catch.
Why the "More Is Better" Habit Persists
The habit comes from older, stiffer wetsuits. In the early days of triathlon wetsuits, stiffer neoprene made donning a struggle. Transition bags often held cooking spray, petroleum jelly, and hair conditioner because they were cheap and available.
Modern race suits don't need that much help. blueseventy uses Yamamoto neoprene in 38, 39, and 40-cell grades, with higher cell counts meaning more flexibility. The thin panels in the arms and shoulders stretch enough that you can pull them on without coating your entire arm. If you lube those areas anyway, the suit slides across your skin instead of settling into place. During sighting or a strong pull, that extra movement shows up as rotated shoulder panels and a neckline that creeps.
The plastic bag method has replaced most full-arm lubing. Put a thin produce bag over your foot before sliding into the leg, and another over your hand before pushing through the sleeve. The bag lets the neoprene pass over the skin without friction, then you pull it off and the suit stays put. No lube needed on your calves, thighs, forearms, or biceps.
The Only Two Spots That Earn Lube
Back of the neck
Use a pea-sized amount on your fingers and rub it into the skin directly below your hairline, where the collar sits. This helps the collar settle flat instead of folding under itself. It also reduces the rubbing that causes a red, raw line after a long swim. You don't need a thick layer. If your fingers feel greasy, you used too much.
Ankle cuffs
If your suit has tight ankles, a small amount on the heel and Achilles lets your foot slide through without rolling the cuff. Leave the rest of the lower leg dry so the suit grips your calf and doesn't ride up.
Skip the wrists unless you have a watch or wristband that catches on the sleeve. Skip the torso completely. The suit should fit snug against your core, and lube there only encourages it to twist.
How to Apply It Without a Mess
Use your fingers, not the tube. A direct squeeze onto the suit makes it too easy to overdo it and leaves product on the neoprene itself.
- Put a pea-sized amount on your fingertips.
- Rub it into the skin at the back of your neck.
- Add another pea-sized amount for each ankle if the cuffs are snug.
- Wipe your hands on a towel before you touch the suit.
- Put the suit on and smooth the collar down with one hand after you zip.
If the collar still folds after you zip, you may need a different size or a suit with a lower neckline. blueseventy redesigned the Fusion in 2021 with a lower-sitting neck for exactly that reason: less stretching, less folding, less need to layer on product.
What to Keep Away From Neoprene
A few products that often show up in transition bags cause more harm than help:
- Petroleum jelly
- Baby oil
- Cooking spray
- Silicone-based lubes
These can degrade neoprene over time, leave an oily residue that's hard to rinse out, and trap chlorine or salt against the material. Silicone-based formulas can leave a film that attracts dirt and grime.
Stick with a water-based wetsuit lubricant, or a water-based formula made for use with neoprene. Check the label. If water is the first ingredient, you're on the right track.
Rinse the suit after every swim anyway. Fresh water removes salt, chlorine, and whatever product you used against the collar. Hang the suit to dry inside out first, then turn it right side out once the inside is dry. That routine does more for suit life than any lube decision.
The Less-Lube Future
Wetsuit lube won't disappear, but its role keeps shrinking. Better neoprene, lower necklines, and simple donning aids like the plastic bag have removed most of the need to coat your body. The next step is a move toward less product overall: spot treatment at the neck and ankles, water-based formulas that rinse clean, and packaging that doesn't end up in a transition bag landfill.
The best lube is a suit that fits. When a suit matches your height, weight, and shoulder width, it slips on with one smooth pull and stays where the panels were designed to sit. If you need lube everywhere to get the suit on, check the size or cut before reaching for more product.
Before you add more lube, start with the fit guide and size chart. blueseventy's Test Swim policy lets you swim in a wetsuit and still return or exchange it if it's clean, dry, and unmodified. That's the real test: put the suit on dry, lube only the neck and ankles, and swim. If the suit shifts at the shoulders or needs a full-body coating to get on, try a different size before you reach for another bottle.
Happy swimming.
