Hand wash Merrell hiking boots with mild soap and cool water, then air dry away from heat. Avoid machine washing to protect glue and fastenings.
You probably think the easiest way to clean muddy hiking boots is to toss them in the washing machine. That impulse makes sense — the machine does the scrubbing, you walk away, and the boots come out looking clean. But for Merrell boots, especially those with glued construction and waterproof membranes, the washing machine is one of the fastest ways to shorten their life.
The right approach is slower but gentler. Merrell’s official care instructions recommend hand washing with mild soap and water, then air drying completely. This guide walks you through the exact process, from gathering supplies to waterproofing, so your boots stay comfortable and supportive for the long haul.
Why Machine Washing Isn’t Worth the Risk
Merrell explicitly warns against machine washing. The agitation can damage the glue that holds the boot together and harm the fastenings. Once the glue loosens, the sole can separate or the boot can lose its shape. A machine’s spin cycle is also tough on waterproof membranes.
Even if the boots survive a wash cycle, the dryer is another threat. Direct heat — from radiators, hair dryers, or direct sunlight — can cause leather or waterproof materials to crack. Merrell advises sticking with hand washing and air drying.
The same logic applies to the insoles and laces. Removing them lets you clean each part properly without putting the whole boot at risk. It also makes drying more effective and prevents lingering moisture from causing odor.
What You’ll Need Before You Start
Before you start, gather a few simple items. The right supplies make the job faster and safer for your boots. Avoid harsh detergents, bleach, or anything with strong chemicals — they can strip waterproofing and damage materials. Stick with these basics:
- Mild dish soap or boot cleaner: Dawn or a purpose-built boot cleaner works well. Avoid laundry detergent or anything with bleach.
- Soft brush: A shoe brush or old toothbrush lets you scrub mud without scratching the material, whether mesh or leather.
- Lukewarm water: Hot water can damage glues; cool to lukewarm is best for rinsing and washing.
- Newspaper or dry towels: These absorb moisture from the inside during drying and help boots hold their shape.
- Waterproofing spray or wax: You’ll need this to restore DWR or condition leather after cleaning.
With these items on hand, the cleaning process is straightforward. Most people already have mild dish soap and an old brush. If you’re buying a boot cleaner, check that it’s pH-neutral and safe for the specific material (mesh, leather, or nubuck) of your Merrell boots.
Step-by-Step: How to Hand Wash Merrell Boots
Start by removing the laces and insoles. Laces can be hand-washed or tossed in a mesh bag in the washing machine on gentle. Insoles should be washed separately in mild soapy water, then air dried completely before going back in. This step prevents trapped dirt from causing odor or wear.
Tap off loose dirt and mud. Use your soft brush or a damp cloth to gently scrub the exterior. For stuck-on mud, let it dry first, then brush it off. Wet the boots with cool water — avoid soaking them. Add a drop of mild dish soap to your brush and work up a lather over the whole surface.
What about the interior? Boots accumulate sweat and odor. You can wipe the inside with a cloth dampened with mild soapy water. Avoid getting the lining soaked. If there’s a removable orthotic, clean that separately. Rinse all soap residue thoroughly from the outside with cool water.
| Step | Action | Key Tip |
|---|---|---|
| Remove parts | Take out laces and insoles | Wash laces in a mesh bag; hand-wash insoles |
| Brush dirt | Use a soft brush to remove mud | Work from top to bottom |
| Wash | Scrub with mild soap and water | Use lukewarm water; avoid harsh detergents |
| Rinse | Rinse with cool water until soap-free | Avoid soaking the interior |
| Dry | Stuff with newspaper, air dry 24–48 hours | Keep away from radiators and sunlight |
Once you’ve rinsed the boots, gently squeeze out excess water (don’t twist). Then it’s time for the drying phase, which is just as important as the washing. Proper drying prevents mold and odor and keeps materials from breaking down.
Drying and Waterproofing
Drying Merrell boots takes patience, but rushing it ruins them. Heat causes cracking and delamination. Cold, damp air can lead to mildew. The goal is steady, gentle drying at room temperature with good airflow.
- Stuff the boots with newspaper or dry towels. This absorbs moisture from inside and helps the boots hold their shape. Change the paper after a few hours if it gets damp.
- Set them in a well-ventilated area away from direct heat sources. A room with a fan (not a radiator) works best. Avoid direct sunlight, which can fade and dry out leather.
- Let the insoles dry separately. Place them on a towel in the same ventilated area. Do not put them back in until both boots and insoles are completely dry.
- Apply waterproofing while the boots are still slightly damp (if using a spray). For leather, you may use a wax or cream. REI recommends renewing the DWR coating after cleaning to restore water repellency.
- Allow 24 to 48 hours for full drying. Check the inside with your hand; if it feels cool or damp, wait longer. In humid climates, it may take an extra day.
If you need boots sooner, a fan can speed things up, but never use a hair dryer or radiator. Quick drying is possible, but it risks cracking the leather or separating the sole. Patience is the cheapest care product.
How Often to Clean and Maintain Your Boots
Standard trail dust doesn’t need a deep clean every time. Merrell suggests promptly removing excess dirt or moisture after each hike. A quick wipe with a damp cloth is enough for light soiling. Save the full hand wash for when boots are genuinely muddy or after a very sweaty trek.
For waterproof boots, the DWR coating wears off gradually. Regular cleaning removes oils and dirt that block the coating from working. Tatonka’s boot care guide emphasizes that regular maintenance for boot life includes cleaning after heavy use and reapplying waterproofing every few weeks during hiking season.
Leather Merrell boots need extra attention. Brush off dirt and mud after each use, and treat them with a leather conditioner or waterproofing agent every month or two. Neglecting leather care leads to cracking and stiffness. For mesh boots, the main concern is odor from trapped sweat; occasional washing keeps them fresh.
| Task | Frequency | Notes |
|---|---|---|
| Quick exterior wipe | After every hike | Use a damp cloth for light mud or dust |
| Full hand wash | Every 2–3 months or when heavily soiled | More often if hiking in wet, muddy conditions |
| Renew DWR coating | After every 3–4 washes or when water stops beading | Use spray or wash-in treatment |
| Condition leather | Every 1–2 months | Leather models only; follow product instructions |
| Check for damage | Each season or after rough terrain | Look for sole separation, worn seams, or cracked leather |
Sticking to this maintenance schedule keeps your boots performing well season after season. A few minutes of care after each hike pays off in years of comfortable use on the trail.
The Bottom Line
Cleaning Merrell hiking boots doesn’t require harsh chemicals or fancy tools. Hand washing with mild soap, drying with newspaper, and reapplying waterproofing when needed will extend the life of your boots and keep your feet comfortable on the trail. Avoid the washing machine and direct heat — they’re the fastest route to a ruined pair.
If you’re unsure about the material of your specific Merrell boot model, check the manufacturer’s website or visit a local outdoor gear shop with knowledgeable staff who can recommend the right cleaners and waterproofing products for your boots.
References & Sources
- Backpacker. “How to Clean Dirty Hiking Boots” REI recommends using a purpose-built boot cleaner or a mild dish soap (like Dawn) to clean hiking boots, applied with a soft brush.
- Tatonka. “Tips for the Care of Your Hiking Boots” Thorough cleaning, careful maintenance, and the regular use of waterproofing agents ensure long life and continued comfort for hiking boots.