6 Best Anti-Odor Laundry Boosters For Damp Clothing Items

Damp gear is the inevitable price of admission for anyone who spends their weekends at the lake, beach, or local pool. When that faint mildew scent begins to cling to your favorite rash guard or beach towel, it is a clear sign that bacteria have settled in for a long stay. Use this guide to refresh your water-sports apparel and keep your gear smelling fresh, season after season.

Disclosure: As an Amazon Associate, this site earns from qualifying purchases. Thank you!

OxiClean Odor Blasters: Best Overall Odor Fighter

OxiClean Odor Blasters stands out as the go-to solution for heavy-duty laundry needs. It utilizes a potent combination of oxygen-based bleaching agents and odor-neutralizing technology to attack the organic compounds that cause lingering damp smells. This product is the ideal choice when a standard detergent simply fails to lift that deep-seated, musty musk from thick fabrics.

This booster performs exceptionally well in standard machine washes and works across a variety of water temperatures. By adding a scoop to the drum along with regular detergent, the formula works to break down the bond between odor-causing molecules and fabric fibers. It provides a reliable, all-purpose remedy for families dealing with high-volume laundry loads after a weekend at the beach.

If you have a collection of mixed fabrics—ranging from heavy cotton towels to synthetic board shorts—OxiClean Odor Blasters is the most versatile contender on the market. It bridges the gap between basic cleaning and heavy-duty restoration. For those seeking a single, high-performing product to keep in the laundry room, this is the definitive choice.

Rockin’ Green Active Wear: For High-Tech Fabrics

Modern water sports gear often features moisture-wicking technology and tight-knit synthetic blends that trap oils and salt deep within the weave. Rockin’ Green Active Wear is engineered specifically for these technical fabrics, prioritizing a deep clean without damaging the delicate chemical coatings that provide UV protection or stretch. It avoids the harsh additives found in traditional softeners that can inadvertently seal odors inside technical garments.

The powder formula is designed to be highly effective at flushing out the biological residue that clings to tight-weave performance clothing. It excels at maintaining the “hand” of the fabric, ensuring that rash guards and compression leggings remain soft and functional. If the goal is to prolong the life of expensive, specialized water gear, this product is worth the investment.

This booster is particularly suited for the athlete who values precision in gear maintenance. Because it is free from many common skin irritants, it is also a safer bet for those with sensitive skin who spend long hours in damp gear. If high-tech performance is a priority, choose this product to keep fabrics breathable and odor-free.

Lysol Laundry Sanitizer: Best for Killing Bacteria

Musty smells are almost always the byproduct of microscopic bacteria that thrive in the damp, warm environment of a gym bag or a beach towel. Lysol Laundry Sanitizer acts as an active disinfectant rather than a traditional masking agent or soap. By killing 99.9% of the bacteria that cause odors, it stops the problem at the source.

This product is particularly useful during the cooler months when gear might stay damp longer than it would in the heat of mid-summer. Pour it into the fabric softener compartment to ensure it is dispensed during the rinse cycle, which is when the sanitization process is most effective. It is an essential addition for those who frequently wash communal towels or gear that has been sitting in a wet state for extended periods.

Unlike detergents, this product is specifically formulated for the rinse cycle and does not replace the need for soap. It should be used as a final defensive layer against persistent mildew scents. For gear that has been sitting in a dark, humid environment, this sanitizer is an absolute necessity.

Downy Rinse & Refresh: Best for a Lasting Scent

Downy Rinse & Refresh fills the gap between basic cleaning and the desire for long-lasting freshness. It functions differently than traditional liquid softeners, which can often coat fibers in a way that actually traps odors over time. Instead, this rinse works by stripping away residue while leaving behind a crisp, clean scent that lingers even after a day of sun and surf.

This product is ideal for items that need a pleasant olfactory reset, such as beach towels that have been stored in a cupboard for weeks. It excels at breaking down the wax-like buildup that sometimes occurs when using low-quality detergents or too much fabric softener. The result is a rinse that leaves fabrics feeling clean rather than coated or heavy.

For those who prioritize a clean, laundry-fresh aroma as much as the actual removal of mildew, this is the premier option. It provides a high level of sensory satisfaction without sacrificing the integrity of the textile. Choose this product if your priority is maintaining a high-quality scent profile for your linens and casual beach cover-ups.

HEX Performance Booster: Tackles Stubborn Body Odor

HEX Performance is built to tackle the specific molecular structure of body oils and sweat that latch onto synthetic fibers during strenuous water activities. It doesn’t just clean the surface; it penetrates the fabric to neutralize stubborn odors that standard soaps cannot reach. This makes it an ideal choice for intense, high-output gear like wetsuits, compression base layers, and board shorts.

What sets HEX apart is its ability to create a protective barrier that resists future odor buildup. It is essentially an insurance policy for your gear, making it easier to clean the next time around. The formulation is light, non-toxic, and specifically tested for performance fabrics, ensuring no compromise on durability.

If you are dealing with gear that seems to hold onto body odor despite regular washing, HEX is the answer. It is specifically formulated to solve the “permanent” smell issue often associated with synthetic sports gear. For those who train hard and wear their gear repeatedly, this is the most effective solution for long-term odor management.

Nature’s Miracle Boost: Top Enzyme-Based Formula

Nature’s Miracle takes a biological approach to laundry care by utilizing active enzymes to digest organic matter. This is particularly effective for gear that has been exposed to lake water, pond algae, or the organic residue of sweat and skin cells. By physically breaking down these compounds, it effectively removes the food source for the bacteria that cause mildew.

This enzyme-based formula is incredibly gentle on fibers, making it an excellent choice for natural blends and delicate items. It works best when given a little time to sit, so soaking your gear in a solution containing this booster can yield superior results. It is the most chemically elegant solution for neutralizing smells naturally.

If you prefer a product that works on a biological level rather than using harsh chemicals or heavy fragrances, this is your best bet. It is highly effective for gear that has been left in a damp pile for just a little too long. For the eco-conscious or sensitive-skin user, Nature’s Miracle offers a powerful, bio-based solution.

Choosing Your Booster: Powder vs. Liquid vs. Pods

Choosing the right delivery system for your booster is about convenience and control. Powders generally offer the most cost-effective, high-intensity cleaning power for large, heavy-duty loads like beach towels and gear bags. They require a bit more attention to ensure they dissolve properly in cold water, but they are often the most potent option for stubborn mildew.

Liquids are the king of convenience, offering easy pouring and instant integration into both standard and high-efficiency machines. They are ideal for delicate, high-tech fabrics where you need to precisely measure the concentration to avoid residue buildup. Liquids work consistently well in any water temperature, making them the most reliable choice for a quick cycle.

Pods offer the ultimate “grab-and-go” solution but provide the least flexibility in terms of dosage. They are perfect for users who want a standardized, fool-proof experience every time they do a load of laundry. Regardless of the form, always check the machine’s compatibility to ensure you are getting the full benefit of the odor-fighting technology.

Pro Tips for Getting Musty Smells Out for Good

The most effective way to eliminate odors is to prevent the conditions that cause them in the first place. Never leave damp gear sitting in a gym bag or a plastic bin. As soon as you finish your session, hang your gear up in a well-ventilated area or in front of a fan to ensure it dries completely before it goes into the laundry hamper.

If the smell has already set in, a pre-soak is often necessary. Fill a basin with warm water and a dose of your preferred booster, then submerge the items for at least thirty minutes. This gives the enzymes or oxygen-based cleaners enough time to penetrate the fibers and break down the microbial colonies that cause the stench.

Finally, resist the urge to overuse fabric softeners. While they smell nice in the bottle, they leave a waxy film on the fabric that seals in dirt and bacteria. If you need freshness, rely on your booster rather than the softening agent, and keep your machine clean by running an empty, hot-water cycle with white vinegar once a month.

Washing Swimsuits and Wetsuits: A Special Guide

Swimsuits and wetsuits require extra care due to the unique materials used to provide elasticity and warmth. Always rinse these items in fresh, cool water immediately after exposure to chlorine or salt water. Salt and chlorine are corrosive agents that can break down rubber and elastic fibers over time, shortening the lifespan of your gear significantly.

When it comes to washing, skip the heavy-duty laundry boosters if the label suggests doing so. Opt for a mild, dedicated sports wash or an enzyme-based booster that is labeled safe for neoprene and spandex. Always wash these items on a gentle cycle, preferably inside a mesh garment bag to prevent snagging on the agitator or other clothing items.

Drying is just as important as washing. Never place your wetsuit or swimsuit in the dryer, as the high heat will destroy the adhesive, elasticity, and technical integrity of the material. Always air dry your gear in the shade, as direct sunlight can cause premature fading and fiber degradation.

Why Your “Clean” Towels Still Smell Like Mildew

If your towels come out of the dryer and immediately smell like mildew, the issue likely resides in the laundry machine itself. Over time, detergents and softeners create a hidden film of residue in the gaskets, drum, and drainage hoses. This buildup provides the perfect, moist environment for mold to thrive, which then transfers to your clean laundry during the cycle.

Another common culprit is overloading the washing machine. When the drum is too full, there is not enough room for the water and detergent to circulate through the fibers of your towels. This leads to poor rinsing, leaving organic matter behind that eventually develops that tell-tale damp scent once the towel gets wet again.

To fix this, check your machine’s filter and run a sanitizing cycle with a specialized washer cleaner. Additionally, stop using excess detergent; more suds do not mean cleaner fabric. By balancing your load size and performing regular machine maintenance, you can ensure that your towels actually come out clean, rather than just covered in a new layer of synthetic fragrance.

Maintaining your gear is an essential part of the water sports experience. By selecting the right booster and establishing consistent laundry habits, you protect your equipment and ensure every session starts fresh. Invest in the right care today, and your gear will reward you with reliable performance all season long.