Wetsuit Care and Repair: Make Your Neoprene Last

A decent cold-water wetsuit costs real money, and the difference between a suit that lasts two seasons and one that lasts ten has almost nothing to do with the brand and almost everything to do with how you treat it in the thirty minutes after each dive. Neoprene is a foam full of nitrogen bubbles, and it is slowly murdered by four things: salt left to crystallise inside it, ultraviolet light, heat, and being folded or hung badly. Every one of those killers is cheap to defeat. This guide covers the full care chain — the rinse routine, drying and storage, zip and seam care, and the home repairs that turn a written-off suit back into a reliable one.

If you haven't bought a suit yet, our cold-water gear kit list covers thickness and fit choices, and the drysuit vs wetsuit comparison helps you decide which system suits your water. This article assumes you own the suit and want it to outlive its warranty by years.

The rinse routine that doubles a suit's life

Salt is abrasive, hydrophilic and corrosive. Left inside neoprene, it grinds the foam's cell walls as you move, holds moisture against your skin (making you colder on the next dive), and eats zip sliders and stitching. The rinse habit takes ten minutes and pays back seasons.

Rinse inside first, outside second. The inside of the suit carries sweat, sunscreen and skin oils as well as salt — all of which degrade neoprene and the lining fabrics over time. Flush the interior thoroughly with fresh, cool water, then do the outside. Pay attention to cuffs, collars and the zip track, where salt concentrates.

Soak, don't blast. A ten-minute soak in a tub of cool fresh water removes far more salt than a two-minute hose blast. Occasionally — every few weeks for a frequently used suit — add a wetsuit-specific shampoo or a tiny splash of baby shampoo, then rinse thoroughly. Strong detergents and anything with bleach or solvents attack neoprene and seam glue.

Cool water only. Hot water softens the adhesives that hold seams and zip tape together. Cold or lukewarm is fine; never hot.

Rinse the accessories too. Boots, gloves and hoods live in the same salt bath. Booties in particular hold sand — turn them inside out to flush the toe.

Drying: the step everyone gets wrong

A suit hung wrong after the rinse is slowly stretched out of shape; a suit dried in the sun cooks from the outside in.

Hang it folded over a wide hanger at the waist, not by the shoulders — shoulder-hanging a wet, heavy suit thins and stretches the shoulder neoprene, which is exactly where you need insulation. Better still, use a purpose-made wetsuit hanger that spreads the load.

Dry in shade and airflow, never in direct sun. UV is neoprene's archenemy: it hardens the rubber, fades the lining and degrades glued seams. A shaded breezy spot dries a suit nearly as fast as sun and costs it nothing. A garage, covered porch or bathroom rail works perfectly.

Inside-out first. Dry the interior lining first (it's the part that touches your skin and dries slowest), then turn the suit right-side-out to finish the shell. A cheap battery fan pointed at the suit turns an overnight job into a few hours.

Never the radiator, the tumble dryer, the hot car boot, or the loft. Heat above roughly 40 °C permanently crushes the foam's bubbles — the suit thins, loses warmth and never recovers. A wetsuit left in a car on a summer afternoon is aging months per day.

Storage between seasons

For a gap of a few weeks, the wide-hanger fold at the waist is fine. For off-season storage of a month or more:

• Clean and bone-dry first. Storing a damp suit invites mildew, which stains linings and smells permanently. Store it fully dry.
• Zip open, no creases. Lay the suit flat if you have the space, or fold it once loosely at the waist. Never fold it repeatedly along the same lines — neoprene creases permanently, and creases are thin, cold spots.
• Cool, dark, dry. A wardrobe or under-bed box beats a shed, loft or garage where temperatures swing and mice live. Keep it away from any source of ozone or solvents — including most car garages.
• Nothing stacked on top. Weight compresses the foam. The bubbles don't fully come back.

Zip care and the small rituals

The back zip is a wetsuit's hardest-working closure. Salt and grit in the teeth make it stiff; forcing a stiff zip tears the teeth from the tape.

Rinse the zip track every time and work the slider up and down under the fresh water. Lubricate occasionally with a silicone-based zip lubricant or a dedicated zip wax — never petroleum jelly or grease on a water suit. Never force a zip. If it sticks, stop, clear the track of stray lining fabric or grit, and try again. Most broken zips were provoked.

While you're at it: close hook-and-loop (Velcro-style) neck tabs before washing and storage so they don't chew the suit's linings, and check knee pads periodically for embedded gravel that will grind the neoprene beneath.

Home repairs: glue, patches and seam fixes

The most empowering insight in wetsuit ownership is that the dominant repair material is a tube of neoprene cement (often sold as "wetsuit glue") costing a fraction of one per cent of the suit. Most failures are home-repairable.

Nicks, cuts and fingernail tears

Fingernail gouges in smooth-skin panels and small fin-kick cuts are the commonest injuries. For a clean cut that hasn't gone through:

1. Clean and dry the area completely.
2. Prise the cut open gently and apply a thin coat of neoprene cement to both faces.
3. Wait the time on the tube (usually until tacky), bring the edges together carefully — first touch is the bond that counts — and hold.
4. Let it cure overnight before use.

For a deeper cut through to the lining, do the same, then back the repair: cut a neoprene patch (old suit offcuts or a repair kit) larger than the wound, glue it inside the suit over the tear, and the repair becomes structurally stronger than the original foam.

Seam failures

Glued-and-blind-stitched seams eventually let go at stress points — armpits and crotches first. A seam repair is the same glue-and-hold job: clean both seam faces, cement thinly, press, cure. If the taping inside has lifted, a neoprene tape strip glued over the seam restores the smooth interior. A suit with two or three neat seam repairs is not retired; it's a suit that was dived a lot.

Knee and seat wear

Felt-like patches worn through to the foam can be reinforced with iron-on or glue-on aftermarket abrasion patches before they become holes. The time to patch a knee is the first season it thins, not the season it splits.

When to retire or refer

A zip that has lost multiple teeth, widespread foam compression (the suit has gone thin and boardy everywhere), or seam failure chasing its own repairs across the whole suit — these are professional-repair or replacement territory. Many good dive shops and mail-in repair services replace zips and rebuild suits economically, and a quality suit is often worth the postage. Divers moving up to dry systems should know the sibling skills are similar: our drysuit care and repair guide covers seals and zips for that system.

Key takeaways

• The four neoprene killers are salt, UV, heat and bad storage; every one is defeated by cheap habits, not products.
• Rinse inside first in cool fresh water; soak occasionally with wetsuit shampoo; never use hot water or strong detergents.
• Dry folded over a wide hanger at the waist, in shade and airflow, inside-out first — never in sun, on a radiator or in a hot car.
• Store clean, fully dry, zip open, unfolded or loosely folded once, cool and dark, with nothing stacked on top.
• Carry neoprene cement: nicks, seam splits and abrasion patches are ten-minute home repairs that save suits.
• Suit care is a diving-environment issue too — a long-lived suit is less neoprene manufactured, shipped and landfilled, which is what choosing durable kit, like choosing responsible operators (our ten questions), is really about.

FAQ

How often should I wash my wetsuit with shampoo?

Rinse with fresh water after every use. Use a wetsuit-specific shampoo (or a very mild baby shampoo) every few weeks if you dive regularly, or whenever the suit starts to smell — odour means bacterial buildup in the lining. Always rinse thoroughly afterward.

Can I put my wetsuit in the washing machine?

No. The agitation stresses glued seams and the spin cycle can crease and compress the foam. If you must wash a suit in bulk, hand-soak it in a bathtub. Ten minutes of soaking beats thirty minutes of machine.

My wetsuit zip is really stiff. Can it be saved?

Usually, yes. Soak the closed zip area in warm (not hot) fresh water, work the slider gently back and forth underwater to flush grit from inside it, dry, then lubricate with silicone zip lubricant. If a tooth is missing or the slider has spread open and won't mesh the teeth, a repair shop can replace the slider or the whole zip.

Is it worth repairing a cheap wetsuit?

Run the numbers: a tube of neoprene cement and a patch costs very little, and any repair that buys a suit another season is both economical and less wasteful than replacement. Zip replacements, by contrast, are worth it on premium suits but may exceed the value of a budget one.

Why has my suit gone stiff and thin even though I barely use it?

That's usually storage damage, not wear: heat (a hot loft or car), permanent folding, or years compressed under other gear. Compressed foam doesn't recover. Store suits cool, dark and loose, and they'll outlast suits dived twice as often but kept badly.