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The short answer: Wetsuits smell even after washing because neoprene is porous and absorbs body oils, sweat, and bacteria that standard washing doesn’t remove. The smell comes from bacteria thriving in the damp, dark environment of your suit. To fix it, you need a deep clean with a vinegar solution, proper drying, and a regular maintenance routine.
Neoprene, the material most wetsuits are made from, has a closed-cell structure that traps moisture and oils. When you wear your wetsuit, your skin releases sweat and natural oils, which seep into the tiny pores of the neoprene. Over time, bacteria break down these organic compounds, producing that musty, ammonia-like smell. Rinsing with fresh water alone won’t remove these oils, and standard washing machines aren’t designed for neoprene’s delicate structure.
If your wetsuit already smells, start with a thorough hand wash using a wetsuit-specific cleaner or a mild, non-detergent soap like baby shampoo. Fill a tub with lukewarm water (avoid hot water, which can damage neoprene) and add the cleaner. Submerge the suit, gently agitate it, and pay special attention to the armpits, crotch, and neck areas where sweat accumulates. Rinse until all soap is gone. For stubborn odors, add a cup of white vinegar to the rinse water to neutralize bacteria. Let the suit soak for 15 minutes, then rinse again. Never wring or twist the suit, as this can tear the neoprene.
Proper drying is just as important as washing. After rinsing, lay the wetsuit flat on a clean towel and roll it up to press out excess water. Then, hang it on a wide, padded hanger in a shaded, well-ventilated area. Avoid direct sunlight, which degrades neoprene, and never use a dryer. Ensure both the inside and outside are completely dry before storing, as any lingering moisture becomes a breeding ground for bacteria. If you need to speed up drying, use a fan or place it near a dehumidifier.
For persistent smells, a deep cleaning every few weeks works wonders. Fill a bathtub with cool water and add two cups of white vinegar. Soak the wetsuit for 30 minutes, then rinse thoroughly. Vinegar is a natural deodorizer and kills bacteria. Alternatively, make a paste of baking soda and water and gently rub it into the smelliest areas, let it sit for 20 minutes, then rinse. These methods are safe for neoprene and won’t leave residue that irritates your skin. Always do a spot test on a small area first.
Prevention is easier than cure. After every surf or swim, rinse your wetsuit immediately with fresh water to remove salt, chlorine, and sweat. Hang it to dry as described. Once a month, do a deeper wash using a wetsuit shampoo. Also, consider your own hygiene: shower before putting on your wetsuit to minimize body oils. If you use a wetsuit for professional or frequent use, invest in a high-quality suit that repels odors better, like those found in our best wetsuit guide, which lists models with advanced antimicrobial treatments.
If you’ve tried deep cleaning and the smell persists, it may be time for a new suit. Over time, neoprene loses its flexibility and odor-fighting properties, especially if it’s been exposed to harsh chemicals or UV rays. A heavily used wetsuit that smells despite all care might have degraded neoprene that’s impossible to fully clean. At that point, replacing it is the practical choice. When shopping for a new one, look for features like glued and blind-stitched seams, which reduce water entry and bacteria buildup.
Q: Can I put my wetsuit in the washing machine?
A: No. Washing machines can crush and tear neoprene, and the spin cycle can permanently deform the suit. Always hand wash.
Q: Does vinegar damage neoprene?
A: No, white vinegar is safe for neoprene in diluted amounts. It’s acidic but won’t break down the material when used occasionally for soaking and rinsing.
Q: How often should I deep clean my wetsuit?
A: If you use your wetsuit weekly, deep clean it once a month. If you use it only occasionally, do a deep clean every few months or whenever you notice a lingering odor.
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