Stinky Hiking Boots: Proven Tips for Fresh Footwear

How I Manage My Stinky Hiking Footwear

If you’ve spent much time bushwalking or hiking, you’ve likely dealt with the all-too-familiar issue of smelly boots or footwear. It’s something I’ve struggled with for as long as I can remember. Back when I was a kid, I even tried putting my sneakers in the freezer to kill bacteria (which didn’t exactly win me points with mum). These days, after a long hike or multi-day bushwalking trip, I still find that my boots tend to develop a distinct odour, no matter what I do. I realise the issue isn’t just the boots themselves—it’s the moisture and sweat that naturally come with being active on the trail, especially in Australia’s warm, often humid conditions.

After plenty of trial and error, I’ve learned some strategies that really help to minimise boot odour. Whether you’re out for a quick day hike or tackling a longer bushwalking adventure, these tips might help keep your boots—and your feet—fresher on the trail.

Why Do Boots Smell?

The unpleasant odour in boots is typically caused by moisture and bacteria. Whether it’s from sweat, rain, walking through water, or simply damp conditions, your feet are naturally prone to getting wet during a hike. On warmer days or long treks, the moisture builds up, creating the perfect environment for bacteria and fungi to thrive inside your boots. 

Bacteria thrive in warm, moist environments, making your boots the perfect breeding ground. The enclosed space of the boot, combined with the heat from your feet and the moisture from sweat or rain, creates ideal conditions for bacteria to grow. Fungi also flourish in these damp environments. The bacteria feed on sweat, dead skin cells, and other organic material inside your boots, releasing the unpleasant smells we associate with stinky footwear.

This is why, after a long hike, boots can get especially smelly—it’s not just from dirt, but from bacteria and fungi actively growing inside, fed by the moisture and warmth.

For me, I’ve always had feet that sweat more than most, and even merino wool or synthetic socks can only do so much. The constant dampness makes odour an ongoing challenge.

What I’ve Been Doing to Tackle the Smell

Over the years, I’ve tried a variety of methods to deal with the odour, some more effective than others. I’ve settled into a routine that seems to work well, and I’d like to share what’s made a difference for me:

1. Disinfectant at Night on the Trail

For multi-day hikes, I carry a small bottle of disinfectant spray to freshen up my boots each night. After a long day of bushwalking, I take my boots off and spray the inside to kill any bacteria before it has a chance to settle in. I also remove my insoles to make sure I’m getting to all the bacteria. If you’ve ever had to keep your boots in the tent with you, or even the vestibule, after a long day, you’ll know just how bad the smell can get, and I’ve learned from experience (and my wife) that a little spray can make a big difference.

2. Letting Boots Dry Out

During breaks on my hikes, I always make sure to take my boots and socks off, even if it’s just for a short time. This simple act helps them air out and dry, especially if the weather is warm or humid. On multi-day bushwalks, I try to leave my boots and socks outside the tent (weather permitting) to completely dry overnight. Giving your footwear a chance to dry out properly can help keep moisture in check and prevent the odour from building up.

After your hike, drying your boots thoroughly is just as important—leaving them in a damp garage or on a rainy porch can create the perfect environment for bacteria, fungi, and odour to thrive. If the weather allows, air drying outdoors is a great option, but for quicker results, you can use a boot dryer or stuff your boots with newspaper to absorb moisture. These methods are particularly helpful after wet or muddy hikes, as they prevent lingering dampness, which can not only cause odours but may also damage the material over time. Whatever you do, avoid putting your boots in the dryer, as high heat can warp or damage their construction, shortening their lifespan.

3. Foot Care

Taking care of your feet is just as important as looking after your boots. I’ve learned that keeping my feet dry is crucial in preventing odour. Even though merino wool socks are excellent at wicking moisture, my feet tend to sweat quite a bit. That’s why I’ve started using foot powders and antiperspirants specifically designed for feet. These products help reduce sweating and keep bacteria at bay, making them a worthwhile addition to any bushwalking or hiking kit. These products can be used before starting your hike, helping to keep moisture and bacteria at bay throughout the day.

4. Thorough Boot Cleaning After Every Hike

Keeping boots clean is an essential step. After every walk, I make a point of cleaning my boots. I start by wiping them down to remove dirt, debris, and moisture, and I follow up with a disinfectant spray—preferably an alcohol-based or tea tree oil-based one—to kill bacteria and fungi. This not only tackles odour but also helps prevent the spread of Phytophthora cinnamomi (commonly called Cinnamon Fungus), which can harm Australia’s native plants. Regular cleaning also extends the life of your boots, keeping them in better shape for future adventures.

For deep cleaning, I recommend giving your boots a more thorough wash every few hikes or at the end of each season. This ensures that accumulated dirt, moisture, and odour don’t have the chance to set in, keeping your boots in top condition.

When it comes to tackling persistent odours, it’s important to understand that the smell usually comes from bacteria and fungi, not just dirt. This means masking the odour with air fresheners won’t solve the problem in the long run. Instead, I recommend starting with something simple: dish soap and warm water. This method is often enough to clean the boots and tackle light odours. Gently wipe down both the inside and outside of the boots using a soft cloth or brush, being careful not to dunk them in water. Soaking them could damage the stitching and adhesives.

If the odour persists after cleaning with soap and water, it may be time to look into an enzyme-based shoe deodoriser. These products are specifically designed to break down the bacteria and organic matter causing the smell. Stick to sprays or wipes, as these are less likely to damage your boots than solutions that require submerging them in water.

While there are other home remedies like baking soda or vinegar, I generally advise against using them, especially if your boots are made from leather or suede. Baking soda can cause these materials to become brittle, and vinegar can sometimes lead to unexpected damage. Additionally, using a disinfectant spray after cleaning can help kill any remaining bacteria or fungi, providing an extra layer of protection against odours and keeping your boots in better condition.

It’s also important to note that putting your hiking boots in the washing machine is not a safe option. The machine’s agitation and heat can damage the stitching and adhesives in most boots. Instead, wash your hiking boots by hand, whether you’re trying to eliminate odours or simply clean off dirt and mud. Proper care ensures your boots stay in good condition and ready for your next adventure.

5. Rotating Boots

One of the best changes I’ve made is to rotate between two pairs of boots, its lucky I have many. If you have the option, it’s a good idea to alternate between pairs of boots, giving each time to dry properly and air out between hikes. This is particularly useful when hiking in wet or humid conditions, where moisture can linger longer in your boots. While rotating boots is more challenging on overnight or multi-day hikes, having a pair of camp sandals or Crocs can help give your boots a break and provide comfort when you’re off the trail.

Protecting the Environment

In addition to personal comfort, there’s an environmental aspect to consider. The spread of Phytophthora cinnamomi (Cinnamon Fungus) is a serious issue in Australian bushwalking areas, particularly in sensitive ecosystems. This soil-borne pathogen kills native plants, and if you’re not cleaning your gear, you might inadvertently be spreading it across different trails. By wiping down and disinfecting your boots after each hike, you help reduce the risk of spreading this harmful fungus, making a positive impact on the environment.

Making your footwear last

Another perk of regular boot care is that it prolongs their lifespan. Cleaning dirt, sweat, and bacteria out of your boots reduces wear and tear, saving you money in the long run. For me, this has become a non-negotiable part of my post-hike routine. Quality boots are an investment, and keeping them in good condition means they’ll serve you well on many adventures to come.

This principle doesn’t just apply to boots—cleaning all your gear regularly can make a big difference in its longevity. Whether it’s your pack, waterproof jacket, or tent, removing dirt and debris helps maintain the integrity of the materials and ensures your equipment lasts through countless bushwalking trips. Taking care of your gear is an investment in the experiences it supports, so it’s worth building the habit of routine maintenance.

Final Thoughts

If, like me, you deal with sweat-heavy feet, it can feel like you’re fighting a never-ending battle with boot odour. But over the years, I’ve learned that with the right strategies, it’s possible to keep the smell under control. By cleaning your boots, using foot care products, rotating pairs, and disinfecting at the end of each day, you can enjoy your bushwalking or hiking experience without worrying about the stench following you home.

What’s your approach to managing boot odour on the trail? I’d love to hear your tips or any stories about how you’ve handled this common problem.