Best Wetsuit Shampoo: Cleaners That Actually Work

A wetsuit shampoo is one of those gear categories that does not exist in most surfers’ carts until the suit develops a smell, and then suddenly becomes essential. The right shampoo extends the life of a wetsuit by years, prevents bacterial buildup, and keeps the lining from smelling like the inside of a gym bag. This guide covers what wetsuit shampoo actually does, the chemistry that matters, and the picks across the small but distinct product category.

For broader care context, the wetsuit care and maintenance guide covers rinse, dry, and storage technique.

Quick picks

Category	Pick	Price
Best overall	Sink the Stink	$15–$22
Best for heavy use / urine	Piss Off	$18–$25
Best concentrated value	Mctags Wetsuit Shampoo	$14–$20
Best general aquatic-gear cleaner	Sea Suds	$12–$18
Best for triathletes / swim-specific	Trident Sport Wash	$14–$22

What wetsuit shampoo actually does

Three jobs.

Kills bacteria. Sweat, salt, and the warm interior of a sealed wetsuit make a near-perfect environment for bacterial growth. Bacteria produce the smell. Wetsuit shampoo contains anti-bacterial surfactants (typically benzalkonium-based or milder eco-friendly equivalents) that break the bacterial chain.

Lifts oils and salts. Routine surfboard wax, sunscreen, and skin oils accumulate in the lining. Salt water leaves crystals. A surfactant-based shampoo carries those out into the rinse water rather than letting them sit in the fabric.

Conditions the rubber. Higher-end wetsuit shampoos (Sink the Stink, Piss Off) include conditioning agents that maintain the flexibility of the neoprene. Plain rinsing eventually leads to stiffness; conditioned washing slows that.

What wetsuit shampoo does not do: remove deep stains, fix existing tears, or restore a suit that has gone fully bacterial. Once a suit smells beyond rescue, it is usually replacement time.

How to wash a wetsuit

The technique matters as much as the product.

Rinse first. Hose down the wetsuit inside and out with fresh water. Let it drain.

Fill a clean bucket or tub with cool to lukewarm water (never hot; heat damages glued seams). Add the shampoo at the dose the bottle specifies, usually a capful per gallon.

Submerge and agitate. Push the suit underwater, work it around for two to five minutes. Pay attention to the chest, groin, and hood interior; those are the bacterial hot spots.

Soak. Leave the suit in the shampoo bath for 5 to 30 minutes depending on how dirty it is.

Rinse twice in fresh water. Make sure all soap is out; residual surfactant attracts dirt later.

Hang dry inside-out on a proper wetsuit hanger until the lining is dry, then flip and dry the outside. Out of direct sunlight.

The whole process takes 30 minutes plus drying time. Doing it once every 5 to 10 sessions makes a real difference.

Best overall: Sink the Stink

Sink the Stink is the most-recommended wetsuit shampoo in surf shops we have spoken with, and the one most team members actually use. The formula is mild enough for routine washing without stripping rubber, with anti-bacterial action effective enough for moderate buildup. Pleasant scent (citrus or fresh) rather than the chemical smell of harsher cleaners. Concentrated, so a single 16-ounce bottle lasts through dozens of washes.

Best for heavy use / urine: Piss Off

The name is direct, and so is the formula. Piss Off is positioned specifically for the urine-smell problem; it includes a stronger anti-bacterial agent and an enzymatic cleaner that breaks down urine residue rather than just masking it. Preferred by triathletes, surf instructors, and anyone whose suit sees daily heavy use. Slightly harsher than Sink the Stink so we do not recommend it for every wash; rotate it in for the deeper cleans.

Best concentrated value: Mctags Wetsuit Shampoo

Mctags is a smaller-brand wetsuit shampoo that has earned a following among triathletes for value. Concentrated formula at a lower price point than Sink the Stink, with similar mild anti-bacterial action. Less widely distributed; mostly Amazon and a handful of online surf shops. Quality control varies more between batches than the bigger brands; we have seen positive feedback consistently but the brand is less proven long-term.

Best general aquatic-gear cleaner: Sea Suds

Sea Suds is positioned as a multi-use aquatic-gear cleaner: wetsuits, dive gear, BCDs, drysuits. The mild formula works on all rubber and synthetic materials. Less specialized for the wetsuit-bacteria problem than Sink the Stink or Piss Off, but if you have a kit of dive and surf gear and want one bottle that handles all of it, Sea Suds is the right choice. Comes in a larger bottle for the price than dedicated wetsuit shampoos.

Best for triathletes / swim-specific: Trident Sport Wash

Trident Sport Wash is a swim-specific cleaner formulated for chlorine residue as much as salt. Triathletes and pool swimmers deal with chlorine, which degrades neoprene faster than salt; Trident neutralizes chlorine in addition to standard cleaning. Available in fragrance-free options for sensitive skin. Less of a surf-shop standard, more a swim-shop staple.

How wetsuit shampoo pairs with broader care

Three notes.

Pair with proper drying. A clean wetsuit hung wrong develops mildew. After shampooing, hang the suit on a proper wetsuit hanger (wide-shoulder, never wire) and let it air-dry inside-out then outside-out. Out of direct sunlight; UV degrades rubber.

Pair with a repair kit for any small tears. Bacteria love torn seams. Patching a 1-inch tear before it grows extends the suit life by a year or more.

Don’t over-wash. Daily shampoo is too much; the cleaning surfactants slowly affect glue over time. Once every 5 to 10 sessions is the sweet spot.

For broader care, see the wetsuit care and maintenance guide and how long does a wetsuit last.

Comparison table

Product	Strength	Specialty	Bottle Size	Price
Sink the Stink	Mild	All-purpose	16 oz	$15–$22
Piss Off	Strong	Urine and heavy use	16 oz	$18–$25
Mctags	Mild-medium	Concentrated value	16 oz	$14–$20
Sea Suds	Mild	Multi-gear	8 to 16 oz	$12–$18
Trident Sport Wash	Mild	Chlorine and triathlon	16 oz	$14–$22

How we tested

The team has used Sink the Stink and Piss Off as the daily-driver wetsuit shampoos across years of cold-water surfing and triathlon training. We have tested both in side-by-side washes on identical suits and confirmed that Piss Off is meaningfully more effective on urine residue while Sink the Stink is gentler on glue. The Mctags, Sea Suds, and Trident picks are based on shop recommendations, brand reputation, and reports from surfers and triathletes we trust rather than long-term firsthand use; we have flagged that in their reviews. We bought all of these at retail.

Putting it together

For most surfers and divers, a single bottle of Sink the Stink covers the routine cleaning needs for two to three years. Triathletes and pool swimmers should also keep Trident Sport Wash for chlorine. Heavy users and rental-suit operators benefit from rotating in Piss Off for deep cleans.

For broader gear care, see the wetsuit care and maintenance guide, how long does a wetsuit last, and complete guide to choosing a wetsuit. To find the right wetsuit for your conditions, the Wetsuit Finder tool takes 60 seconds.