Nikwax Base Wash Fabric Care


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Formulated specially for cleaning synthetic base-layers, the Nikwax BaseWash is perfect for refreshing all synthetic fiber garments; such as socks, running attire, and travel clothing. Easy to use, a simple washing machine application removes odors, revitalizes wicking properties, and helps quicken the drying process. Environmentally friendly, this treatment is biodegradable, non flammable and non hazardous.


  • Water Based – environmentally friendly, biodegradable, non-flammable, non hazardous, does not contain fluorocarbons
  • Use with synthetic base layers, socks, travel clothing
  • BaseWash refreshes and removes odors
  • Enhances and revitalizes wicking properties
  • Helps fabric to spread sweat and dry quickly, keeping you more comfortable in all conditions
  • Increases breathability
  • Easy to use – can be applied in a washing machine

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Review Summary

4.8 out of 5

10 Reviews

  • Performance: 4
  • Ease of use: 3
  • Great value: 2

Quality: 4.9 / 5

10 Ratings & Reviews


very good product
March 04, 2010

leave base clothes clean and fresh smelling. Worked exactly as I expected.

works great on stinky clothing
December 27, 2009

great scent

Works great, just leaves a chemical smell
April 12, 2009

Base wash works just as advertised, I can definitely notice a difference in the amount of sweat that my UA cold gear bases pull off my body after using this vs plain detergent for the past few years. 2 small annoyances with the product - it has an odd chemical smell that seems to linger in the gear (when you open the bottle, you'll understand) and you have to make sure to use the extra rinse cycle - otherwise, your dark colors have white/gray residue on them in odd places - a rewash w/ nothing but water took care of it, but would have been nice to specify on the bottle directions!

Quality: 5 / 5
from NY, NY

Clean smell
March 20, 2011

After using this a couple of times I relaize the fabric of the running clothes smell a lot better. The running gear used to keep odors in even after they were washed (regular laundry detergent) but this works so much better, odors are gone and clothes smell fresh again.

Pros: Ease of use
Quality: 5 / 5
from Staten Island, NY
35-44 yrs

Cleans really well!
May 05, 2011

I use synthetic type underwear in the winters because I work outdoors. They keep me really warm and dry. I did not know that regular detergent was hindering the performance of my gear, and I had noticed that my body sweat wasn't getting through the fabric that well as it did when I first got it. So, after buying other products from Altrec, I came across this Base Wash. I took all my under wear gear and washed it in this stuff and all I can say is that the other reviews are right. Cleans really well, smells clean and I could tell by just handling the garments that they will work like they did when I first bought them. I will have to wait till the next coming winter to say for sure, but I know given their other products that it will not let me down!

Pros: Performance, Ease of use, Great value
Quality: 5 / 5

from ny, ny
35-44 yrs

works great
November 01, 2010

I have a lot of workout outfit that became.. easily stinkable over the time. this helped prevent the smell to come back after heavy work out! more I use it, better it worked. I love it!

Pros: Performance
Quality: 5 / 5
from North Carolina
35-44 yrs

We love Altrec
September 05, 2011

Always the best price. Never have to worry bout it not getting to our house on time..It arrives fast and safe. The shippng price was also a great value..thank you will be back

Pros: Great value
Quality: 5 / 5

September 13, 2011

This stuff is great for getting rid of the Stink in base layer clothing infact my wife like this so much that she uses it on all the whites to keep them smelling fresh.

Pros: Performance
Quality: 5 / 5
from Seattle

Great Product
April 01, 2011

My son rows 5 days a week and comes home sweaty. His wet close sometimes sit for days before being washed. Before using Base Wash, his closes would not always smell good, even after repeated washes with commercial cleaners. Now that we are using Base Wash, his close smell clean, and the complaints have ended.

Pros: Performance, Ease of use
Quality: 4 / 5

November 07, 2010

Works well. I have sensitive skin though and found it's important not to use too much or it's somewhat irritating for layers that touch my skin. Great when used in appropriate amounts!

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