As soon as you open your shoe closet, something hits you. Or you take off your shoes after a long day and hope no one is around to hear you. Almost every sneaker owner has had this problem at some point, and it is one of the most common and embarrassing shoe problems. Having smelly sneakers doesn’t mean you don’t keep them clean. The smell comes from material, and the specific conditions inside a closed shoe. Once you know what is causing the smell, it is much easier to get rid of it.
This guide tells you everything you need to know about getting rid of sneaker smell, why it happens, what really works, and how to keep it from coming back.
What makes sneakers smell in the first place?
Sweat itself doesn’t smell bad; in fact, when it leaves the body, it doesn’t smell bad at all. Bacteria make the smell, and the inside of a closed shoe is one of the best places for bacteria to live. Your feet have more sweat glands per square centimetre than most other parts of your body. Every day, each foot makes a lot of moisture, and in warmer places like the UAE, that amount goes up a lot. When that moisture gets into a shoe, it gets into the insole, the lining, and the foam in the middle. Bacteria that naturally live on skin also go this way, looking for warm, moist, and dark places where they can grow quickly. They make the volatile organic compounds that give sweat its unique, bad smell by breaking down the proteins and fatty acids in it.
The longer a shoe stays wet without being aired out, the more bacteria grow and the more the smell compounds get into the materials. This is why sweaty feet that make shoes smell bad keep happening over and over again. Every time you wear them, they get wetter, more bacteria, and more things that make smells until the smell can be smelled from farther away.
Different types of shoes hold smells in different ways. Synthetic materials that don’t breathe trap heat and moisture better than natural materials, which makes bacteria grow faster. Thick foam insoles soak up and hold onto moisture deeply, which makes them one of the hardest parts to completely deodorise. Mesh uppers, which are common in performance trainers, let in more air than solid panels. However, because their open weave structure lets bacteria and odours spread throughout the shoe instead of staying in one area, they are not as effective.
The Quick Fixes That Work
Step One: Take off the insoles and fix them first
The insole is where most of the smell comes from, and most people don’t clean it when they clean their shoes. Take the insoles out of the shoes after each use and let them air out on their own. This easy step makes it take a lot longer for moisture and bacteria to build up.
If your insoles already smell bad, wash them by hand with mild soap and warm water. Use a soft brush to scrub them gently, rinse them well, and let them dry completely, preferably overnight, before putting them back in the shoe. If the insoles smell really bad and cleaning them doesn’t help much, the best and most cost-effective thing to do is to replace them completely.
Step Two: Add baking soda
Sodium bicarbonate, or baking soda, is one of the best ways to get rid of smells in sneakers, and most kitchens already have it. It doesn’t just cover up the smell with a scent; it chemically neutralises the acidic odour compounds that bacteria make, getting rid of them instead of covering them up.
Put a lot of baking soda directly inside each shoe, about one to two teaspoons per shoe, and let it sit overnight or for at least eight hours. Before putting it on, tap it out well. Put baking soda in a thin cotton sock or a small sachet, tie it up, and leave it in the shoe for a more controlled use. This keeps the powder from spreading and makes it easier to get rid of without leaving any behind. As a way to keep things clean, do this every two or three wears. The overall effect on controlling odours is very big.
Step Three: Spray with White Vinegar
White vinegar is another great way to get rid of sneaker smells. It works in the same way as baking soda: it gets rid of the smell at its source instead of covering it up. Fill a small spray bottle with equal parts white vinegar and water. Lightly spray the inside of the shoe and let it air dry completely before putting it on. As the vinegar dries, the smell goes away completely, along with the smell of the bacteria.
This method works best as a first step for shoes that smell bad. The vinegar goes deeper and neutralises the smell better the first time it is used.
Step Four: Put Them in the Freezer
People are surprised by this one, but it works. Putting smelly sneakers in a sealed plastic bag and leaving them in the freezer overnight kills a lot of the bacteria that make the smell. Freezing doesn’t get rid of the compounds that are already there, but it does kill a lot of the active bacteria, which slows down the production of new odours and makes the shoes smell much better after the treatment. Let them cool down to room temperature and air out for an hour before you wear them.
How to Keep Your Sneakers from Smelling Bad in the Future
Getting rid of smells is nice, but stopping them from happening is smarter. A few regular habits can make a big difference in how quickly sneakers start to smell and how much work it takes to keep them clean.
Change your shoes around
If you wear the same pair every day, there isn’t enough time for the moisture to dry out between wears. If you switch between two pairs, each one has at least twenty-four hours to dry out completely. This slows down the growth of bacteria and the smell.
Put on socks that wick away moisture
The type of material your socks are made of has a big effect on how much moisture gets to your shoes. Natural fibres like merino wool and technical synthetic fibres made for moisture management move sweat away from the skin better than regular cotton socks. This means that less moisture gets into the shoe with each wear.
Take off your shoes right away after wearing them
When you get home, take off your shoes and leave them in a place with good air flow instead of putting them in a cupboard or shoe bag. Ten minutes of exposure to the air after each wear makes a big difference in how much moisture builds up over time.
Keep your feet clean and dry
Washing your feet well and making sure they are completely dry before putting on shoes, especially between the toes where moisture collects, greatly lowers the number of bacteria that get into the shoe with each wear.
When Home Remedies Don’t Work
The methods above work well for most cases of sneaker odour, as long as they are used consistently and thoroughly. But there are times when the smell has gotten too deep into the materials for home cleaning to completely get rid of it. This is especially true for shoes that have been worn a lot over a long period of time without enough care or shoes made with thick foam parts that have absorbed moisture deeply over dozens of wears.
In these situations, a professional shoe cleaning service can do a better job than cleaning them yourself. Our expert team at Clean My Shoes uses professional-grade cleaning tools and products to deep clean, sanitise, and deodorise sneakers at every level. This includes treatments that work much better than any home cleaning method on foam and lining materials. Our shoe cleaning service is available all over the UAE, and we can pick up and drop off your shoes right at your door. This makes professional sneaker care as easy as it is effective.
Frequently Asked Questions
1- Can I put my smelly sneakers in the washing machine?
Fabric and canvas sneakers can generally tolerate a gentle machine wash in a mesh laundry bag on a cool cycle, which can help with odour, but always remove insoles and laces first and wash them separately. Leather, suede, and sneakers should never go in the machine as the water and agitation will cause lasting damage to materials and construction.
2- How long does it take for baking soda to remove sneaker odour?
Baking soda works most effectively when left in the shoe for a minimum of eight hours, overnight is ideal. For severe odour, repeat the treatment for two or three consecutive nights before assessing the result.
3- When should I consider replacing my insoles instead of cleaning them?
If insoles remain noticeably odorous after thorough hand washing and drying, or if they are visibly compressed, misshapen, or have been in regular use for more than six to twelve months, replacement is almost always the more effective and hygienic solution.