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  • Bio-degradable solution of 10 microbial elements penetrates into the pores of fabric, rubber and even hard surfaces to eliminate odor naturally
  • Fast, effective and completely safe for the environment, leaving only carbon dioxide and water as by-products
  • Ideal for cleaning hundreds of items including PFDs, wetsuits, dry suits, tents, backpacks, bivy sacks, neoprene gloves and booties
  • Solution is mixed with water; works quickly and thoroughly with one application, no need for lengthy soaking

Made in USA.

Directions for use: Use � oz. (15ml) MiraZyme® for every 20 gal. (75.8L) of water. Use 1-1/2 oz. (45ml) MiraZyme for every 55 gal. (208.5L) of water. Mix well. Unzip all garment and compartment zippers. Dip item into solution, saturating inside and out. DO NOT RINSE. Remove item and air dry. Cap bottle tightly and store in a cool, dry place. May darken leather. Test for colorfastness prior to use.

DIRECTIONS FOR USE ON TENTS: Mix 2 oz (60ml) MiraZyme in 20 gal (75.8 L) of water. Turn tent inside out and unzip doors. Immerse tent in solution, saturating completely. Soak for 5 minutes. DO NOT RINSE. Remove tent and air dry.

FOR STUBBORN OR SEVERE ODORS such as pet mishaps, skunk, fish, spilled milk, farm boots and work gear: Apply MiraZyme full strength to problem area. DO NOT RINSE. Air dry. MiraZyme may be applied with a spray bottle, mixed according to directions or full strength. Saturate item completely.

View all Gear Aid Gear and Clothing Washes

REI membership


Best Use Kayaking
Volume 2 fluid ounces
Rated 5 out of 5 by from Removes funky smells! Used this to remove that funky "old sweat" smell from several pieces of gear, including a ten-year-old day pack with several hundred days of use. Much easier to use than I expected, and it worked great. Yes, some of the waterproof coating came off my day pack. That happens with plain water, too, not the fault of this product. Polyurethane (PU) waterproof coating has a limited life span, much shorter if equipment is put away wet and mold grows. Once you have the mold, highly likely the coating will peel off, regardless. Mirazyme is still your best bet to get rid of the smells and preserve most of the coating.
Date published: 2013-06-09
Rated 5 out of 5 by from The Gear Reclaimer I bought this stuff to help resurrect a 30 year old Jansport Trail Dome tent that had spent 10 years stuffed tightly in it's stuff sack. (I know not a good practice, but I learn slow!) This stuff rocks! Simply put 2 ounces of MiraZyme in a laundry sink full of water, submerge the tent (something of a challange, but achieveable) let it soak for a bit, then hang where it can drip dry, and voila! It was like a new tent! I've since used it to breath new life (and fresh smells) into a variety of gear, and have never been disappointed. If I had a con about this it would be that my local REI (the flagship store) seems only to carry the small size container of it.
Date published: 2010-04-18
Rated 5 out of 5 by from Works on shoes with smelly feet! I personally recommend this to anyone who has a hard time taming the smell of their shoes due to their sweaty, smelly feet. Overnighting with others? Perfect. Pour some into a little travel pump (1" diameter by 2" tall), and spray 3-4 pumps into your shoes when you take them off (not much, just to make them just visibly damp) and leave them to dry overnight (1+ hrs). Voila! No smell or anxiety in the morning, or when you finish the day's hike. Try it before the outing to make sure it works for you, best few bucks you'll ever spend if you've had my problem. I only stumbled on to it online, and thought, what do I have to lose?! They work even better after washing them with the Mirazime (as instructed). TMI: I wear Merrill Chameleon II Stretch size 10, and my feet/shoes still stunk before Mirazime. NO MORE! ha! =D Hope this helps someone else!
Date published: 2008-06-20
Rated 1 out of 5 by from Weather proofing came off I used about 1/2 oz of Mirazyme in a full bath tub of water on my Kelty tent rain fly which only had a mild smell. I was hoping to eliminate that smell. What happened looks like it ate away at the weather proof coating on the fly. It was the original fly and never treated with after market protection. After a couple minutes of soaking it looks like your skin does when you peel after a sunburn. It's a slight brownish color and rolls up like peeling skin. It appears to be the weather proofing coming off. This is a very unfortunate thing to happen. I loved my Kelty tent and not it's almost ruined unless I buy a new rain fly. thank goodness I only did the fly and not the tent too! I would say to be VERY careful when using this product.
Date published: 2012-09-22
Rated 5 out of 5 by from Works Great! This was recommended to remove cat pee from a neoprene laptop sleeve. It worked like a charm. I have also used it on my flipflops, bookbags and catboxes. It's amazing!
Date published: 2009-05-19
Rated 5 out of 5 by from Got the funk out of my tent I had a tent that I let a friend borrow and it was inadvertently put away wet. When I pulled it out for a trip, the smell was so bad that I left it behind. After contacting the tent manufacturer, and trying three different methods, nothing worked. I was on the verge of tossing the tent and then I read about this stuff. I followed the included directions, and it worked perfectly. I am pretty jazzed that McNett saved my tent from the dumpster!
Date published: 2011-04-12
Rated 5 out of 5 by from No more stink Used it on a great 20 year old tent that had a moldy smell. Washed and dried tent and fly as directed and the funk is gone! Simple and effective.
Date published: 2011-10-19
Rated 5 out of 5 by from hockey funk If you play hockey you know the funk you gear gets. This stuff will take that funk away. even my super stinky gloves no longer stink.
Date published: 2008-11-28
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Would this product be a wise choice to eliminate cat urine odor on a relatively new REI Crestline rain jacket?  Or would laundering with NikWax be preferable?

Asked by: Seb04
The MiraZyme should do a good job. Another option is to go to a pet supply store. They carry liquids specifically designed for cat urine.
Answered by: REIservice
Date published: 2016-06-20

Does this product have its own odor? I'm very sensitive to chemicals, especially chemical scents (wouldn't dream of using Febreeze). It sounds like Mirazyme attacks an odor and then dissipates, leaving nothing behind... is that correct?

Asked by: Chris J
This product is perfume-free and does not have an inherent odor.
Answered by: REIservice
Date published: 2017-05-17

Would Mirazyme be safe to use on an rei tent and fly that reeks of cigarette smoke?

Asked by: trldog
Yes, we recommend using McNett MiraZyme Odor Eliminator to remove all kinds of odors, including that of cigarette smoke.
Answered by: REIservice
Date published: 2015-09-20

Can I use this on washable wool?

Asked by: Krisander
Yes, Mirazyme is fine for washable wool. Wash as per the instructions and hang or lay flat to dry completely.
Answered by: REIservice
Date published: 2016-10-05

Does this actually remove visible mildew stains (in my case, from white canvas tent) or is it primarily for removing odors?

Asked by: Foxtail
The MiraZyme Odor Eliminator​ is for removing odors, not stains.
Answered by: REIservice
Date published: 2016-08-31

After using the product, how long does it take to dry? I'm looking to use it on a tent and would like to know how long after application it would be dry/safe to sleep in.

Asked by: Jessi888
The time it takes to dry is largely dependent on the product itself. You are welcome to use the tent again once it is dry to the touch.
Answered by: REIservice
Date published: 2017-06-25
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