6 Best Waterproof Gear Marking Pens For Swim Team Equipment

Finding a lone pair of goggles at the bottom of a busy pool deck is a rite of passage for every swimmer, but it is one that quickly loses its charm. Investing in a quality marking pen ensures that expensive training gear finds its way home after every practice. Securing ownership of equipment is not just about cost; it is about keeping a focused mind on the water rather than worrying about lost kit.

Disclosure: This site earns commissions from listed merchants at no cost to you. Thank you!

Sharpie Rub-a-Dub Laundry Marker: Best Overall

When it comes to labeling swim caps and nylon practice suits, the Sharpie Rub-a-Dub stands in a class of its own. Engineered specifically for fabric that undergoes frequent washing, this marker utilizes a specialized ink formula that resists the abrasive nature of chlorinated water. It delivers bold, dark lines that remain legible long after standard office supplies would have faded into illegibility.

The ink dries quickly, minimizing the risk of smudges when marking gear in a hurry between locker room transitions. Because it is designed for textiles, the ink possesses a slight flexibility that prevents it from cracking or flaking off when swimsuits stretch during butterfly or breaststroke sets. This is the go-to choice for athletes who prioritize reliability and ease of use above all else.

Choosing the Rub-a-Dub means opting for a low-maintenance solution that performs consistently season after season. It is the most versatile option for a swimmer’s entire gear bag, from silicone caps to polyester competition suits. If a single marker must be chosen to handle every piece of equipment, this is the definitive investment.

Name Bubbles Waterproof Labels & Pen: Best Kit

For those who find that ink eventually fades on certain porous surfaces, the Name Bubbles kit offers a hybrid approach to gear management. This system combines industrial-strength adhesive labels with a specialized marking pen, creating a double-layered barrier against moisture. The labels themselves are dishwasher and laundry-safe, providing a structural anchor for the ink.

This kit excels in environments where direct writing on the item is impractical, such as the textured surface of a kickboard or the interior strap of a high-end training snorkel. By writing on the label rather than the gear, the risk of ink bleeding into synthetic rubber or plastic is entirely removed. It is an excellent choice for younger swimmers who have not yet mastered the art of clear, permanent marking.

The trade-off here is the slight physical profile of the label, which can occasionally snag on high-friction equipment. However, for identifying expensive training aids that are often swapped or misplaced, the visibility of a crisp, printed-style label is unmatched. For athletes who want a foolproof system that looks professional, this kit is the premium standard.

Sharpie Extreme Fade Resistant: Best for Sun

Open-water swimmers and triathletes face a unique challenge: the dual assault of chlorine and relentless UV exposure. Standard markers often degrade under direct sunlight, leaving behind faint, unreadable marks that fail to identify gear after a few sessions. The Sharpie Extreme is formulated to withstand these harsh environmental factors, making it perfect for marking gear that stays on the pool deck or open-water beach.

This marker features a heavy-duty tip capable of writing on rough, uneven surfaces like the plastic shells of fins or the frames of anti-fog goggles. The ink is specifically engineered to resist UV-related color breakdown, ensuring that names remain bold even if equipment is left in the sun for hours. It is the most robust option for those whose training environment extends beyond the indoor pool.

While the ink is exceptionally durable, the tip is slightly broader than other options, making it less ideal for small, delicate items like goggles. However, for mesh bags, pull buoys, and fins that endure significant wear and tear, the durability of this marker is superior. For the outdoor athlete, this is the only logical choice to prevent gear from vanishing.

Edding 8040 Laundry Marker: Best for Swimsuits

Identifying team-issued gear is a specific challenge because of the need for long-term durability on synthetic fabrics. The Edding 8040 is a specialized laundry marker that excels at penetrating deep into the fibers of polyester and PBT fabrics without feathering. It is designed to withstand high-temperature washing cycles, meaning it can easily handle the chemical intensity of a daily swim practice.

The pen’s ink is resistant to boiling, which highlights just how well it holds up against the lukewarm or cold water of a training pool. It offers a precise tip that allows for writing names clearly on the interior tags or fabric waistbands of swimsuits. Because the ink is so thoroughly absorbed into the fabric, it remains visible even as the suit begins to show signs of age or pilling.

If the primary goal is marking team-issued textiles that go through frequent wash cycles at home, the Edding 8040 is the most effective solution. It provides the most permanent bond available for fabric, outlasting nearly every other standard laundry marker on the market. Serious swimmers who rely on team gear will find this to be an essential addition to their swim bag.

Avery Marks-A-Lot Permanent Marker: Best Budget

Not every piece of swim gear requires a specialized chemical formulation to stay labeled. For basic items like plastic water bottles, mesh gear bags, or standard silicone goggles, the Avery Marks-A-Lot serves as a cost-effective workhorse. It is readily available, inexpensive, and provides a decent level of resistance to water, provided it is given ample time to cure.

The secret to success with this marker is the application process; writing on a bone-dry surface and allowing the ink to set for 24 hours before it touches water is essential. While it may not possess the same UV-shielding or heavy-duty chemical resistance as specialized markers, it is more than sufficient for casual, seasonal use. It remains a reliable option for swimmers who prefer to buy in bulk and distribute markers among multiple training bags.

While it is the best budget option, it is not recommended for items that undergo significant friction or extreme chemical exposure. It is perfect for the recreational swimmer or the younger athlete who might misplace gear frequently. If budget is the primary concern, this marker offers the best performance-to-price ratio in the category.

Uni-ball Super Ink Marker: Best Fine Point Pen

Visibility is only half the battle; the other half is clarity. Many swim gear surfaces—such as the nose bridge of goggles or the thin straps of a cap—provide very little space for bold, thick ink. The Uni-ball Super Ink Marker features an exceptionally fine tip that allows for intricate, high-contrast labeling on even the tightest, most cramped surfaces.

The “Super Ink” technology is chemically bonded to cellulose and synthetic fibers, making it incredibly difficult to remove once it has set. Its precise point ensures that names remain legible even when written in small, tight spaces where a standard chisel-tip marker would bleed or become a messy blur. For the swimmer who wants to mark their gear discreetly without ruining the aesthetic of expensive equipment, this is the perfect tool.

Because of the thinness of the ink line, it is not recommended for larger plastic items like kickboards or paddles. However, for technical gear and precision labeling, its performance is unmatched. If attention to detail is a priority, the Uni-ball Super Ink is the most refined choice on this list.

What Makes a Marker Truly Waterproof in Chlorine

The primary challenge of marking swim gear is the constant presence of chlorine and other pool chemicals. These substances act as solvents, actively working to break down the binders within standard ink formulas. A truly waterproof marker must utilize alcohol-based, permanent pigments that form a hard, chemical-resistant bond with the surface of the plastic or fabric.

In contrast to surface-level ink, professional-grade markers utilize formulas that are designed to withstand aggressive scrubbing and chemical oxidation. When selecting a marker, look for labels that specifically mention laundry resistance or industrial-strength durability. Simple “permanent” markers, while useful in a home office, often lack the structural integrity to survive more than a few days of total immersion in a chlorinated environment.

Furthermore, the cure time is just as important as the ink chemistry itself. Even the most powerful marker requires time for the solvent to evaporate and the pigment to fully anchor. Always mark gear at least 24 hours before it is needed to ensure the ink has reached its maximum level of water resistance.

How to Prep Goggles and Fins Before You Write

Writing on a wet or oily surface is the most common reason labels fail. Silicone goggles, in particular, are often covered in a fine layer of mold-release agent or residual sunscreen that prevents ink from ever touching the actual material. Before marking, always wipe the desired area with a clean cloth soaked in isopropyl alcohol to strip away these oils.

For harder plastics like fins or boards, a quick pass with fine-grit sandpaper can provide a “tooth” for the ink to grab onto. This increases the surface area for the pigment to bond, making the marking significantly more permanent. However, keep the scuffing localized and light to ensure the structural integrity of the plastic is not compromised.

Allow the surface to dry completely before applying any ink. Any trapped moisture underneath the mark will eventually cause the ink to lift and bubble, turning a crisp name into a smudged mess. Taking these extra two minutes to prep the surface will extend the life of the marking by several weeks.

Keeping Ink from Fading During Long Swim Seasons

Even with the best marker, constant friction and chemical exposure will eventually lead to fading. To mitigate this, consider applying a thin, clear layer of adhesive tape or clear nail polish over the dried ink. This physical barrier prevents direct contact between the pool chemicals and the marking, significantly extending the duration of the name.

Another effective strategy is to choose the location of the label carefully. Avoid areas of the gear that experience high-frequency contact, such as the direct middle of the goggle strap or the primary grip points on a pull buoy. Placing the mark on the underside of a strap or the non-grip side of a board provides a natural shield against the constant friction of the water and the athlete’s hands.

Finally, keep track of the labeling status as part of the end-of-season ritual. If a name begins to look thin or blurred, a quick “touch-up” is much easier than reapplying a mark once it has completely disappeared. Consistent, light maintenance is always superior to a total failure that results in lost, unidentifiable equipment.

Safely Removing Mistakes Without Ruining Gear

Mistakes are inevitable, but they are not permanent. If a name needs to be changed or a mark was applied to the wrong spot, high-concentration isopropyl alcohol is typically sufficient to dissolve most industrial inks. Simply apply the alcohol to a cotton swab and rub firmly; the pigment should begin to lift without damaging the underlying plastic.

For more stubborn marks, a small amount of non-acetone nail polish remover can be effective, though it should be tested on an inconspicuous area first. Avoid using harsh solvents or steel wool, as these can permanently scar the finish of high-performance gear like swim goggles or specialized racing suits. Patience is the key; allow the solvent to dwell on the ink for a few seconds before wiping.

If the gear is made of porous foam or textured rubber, the ink may have stained the material more deeply. In these scenarios, it is better to leave a faint mark than to risk damaging the equipment with aggressive chemicals. Gentle, repeated applications of a mild solvent are the safest way to correct errors while maintaining the performance of the gear.

Choosing the right marking pen is a small but critical step in mastering the logistics of daily swim training. By selecting a tool that fits the specific material of the gear and applying it with care, athletes can ensure their equipment remains safely in their hands. Spend less time searching for lost items and more time focusing on the next set in the pool.