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Kühl Free Radikl Outdoor Pants Hiking Test & Review

Disclaimer: Kühl sent this product to us for free for a review. That does not affect our opinion about the product. In this article, we list both what we like and dislike. Read more about this here.

What’s the Difference Between Kühl Radikl & Free Radikl Pants?

The Radikl pants are some of Kühl’s most popular outdoor pants for men.

There are two versions of these fantastic lightweight hiking pants, the Radikl and the Free Radikl.

The only difference between the two is the fit. The Radikl has a “Klassik Fit” and the Free Radikl has a tapered fit.

Tapered fit means the pants become more narrow down towards the ankles. They follow the shape of your leg and are more form fitting.

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The Kühl Free Radikl pants have a different seam/vent in the knee area and are more narrow in the calf and ankle.

I’ve been using the Kühl Free Radikl pants for hiking and camping, but they are nice enough for wearing around town and comfortable enough for relaxing at home.

In this review, I’m going to go over the key features, the fit, and talk about my experience wearing them on hikes.

hiking through a forest wearing kühl free radikl mens hiking outdoor pants
Kühl Free Radikl Pants can be work while hiking, camping, and even around town.

Kühl Free Radikl Pants

Click here to view the Kühl Free Radikl pants on their website.

Main Features

  • Fabric 68% Cotton / 29% Nylon / 3% Spandex
  • Enduro Performance Fabric
  • 176 GSM (grams per square meter)
  • Flexible Fabric Gussets (Stretch Panels)
  • Stretch panels along leg, knees, thigh, and crotch area create a more comfortable fit.
  • UPF 50+ Sun Protection
  • Quick Drying
  • 6 Pockets – including two bag leg phone pockets.
  • Free Ryde Waist – made to follow hips for better fit.
  • Tapered Fit
  • 8 Color Options
  • 11 Waist Sizes
  • 5 Inseam Size Options
  • Total Weight – 14.5 oz (410 grams)
kühl free radikl pants being worn while camping
Even though the Kühl Free Radikl pants have a tapered fit, they are still pretty loose and very comfortable.


Pant size I’m reviewing: 35 Waist / 32 Inseam

Color: Dark Khaki

My Height: 5 foot 11 inches

My Weight: 175 lbs

Sizing runs standard to a little large when compared to other brands.

The legs don’t fit as tapered as I thought they would. They’re pretty baggy, but very comfortable, especially when lounging around the campsite.

The waste fits really great. I normally have to wear a belt, but I didn’t need one with the Kühl pants.

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Kühl free radikl men's hiking pants being worn on a narrow trail with lots of brush
The thin material used for the Kühl Free Radikl pants is still very durable and tear resistant.


The Kühl Free Radikl and Radikl hiking pants are made with their trademarked “Enduro” fabric.

It’s a highly durable but lightweight material that’s perfect for the outdoors.

There are areas of stretchy material added in certain spots to make the pants more comfortable and movable.

The Free Radikl has more stretchy panels than the Klassik Fit Radikl Pants.

You get more stretch in the crotch area, above, below and to the side of the knee area, and in the back.

I wouldn’t call these hot weather hiking pants. They’re pretty warm and perfect for cooler fall, spring, and morning hiking.

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back drop in phone pocket on the kühl free radikl outdoor pants
The phone pocket on the Kühl Free Radikl pants is big enough for the largest iPhone.

Special Features

Besides the highly durable, lightweight material and the stretchy panels, there aren’t a lot of other special features with the Radikl and Free Radikl outdoor pants.

There are two special deep “drop pockets” on each leg in the back.

They’re made to fit a cell phone so you can easily stash it.

My phone is one of the larger models. It fits in the pocket but it’s pretty snug.

The front and back pockets are large enough to fit my phone as well. I mostly used the front pocket to store my phone while hiking.

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kühl free radikl hiking pants being worn while camping next to a lake
The Kühl Free Radkil pants have added stretch panels for airflow and flexibility.

Kühl Free Radikl Pants Review

You can really tell that these pants are designed by people who hike. The placement of the stretch panels (gussets) is perfect.

These are some of the most comfortable pants I own.

Because they sit so well on my waist, they are really nice to wear when walking long distances.

The only thing that was a little unexpected was how warm they were.

These aren’t advertised to be for hot weather hiking, so it’s not really a con for them, but it’s something to note.

I wouldn’t wear these in temperatures hotter than 70°F.

They’re perfect for early morning, spring, and fall hiking and camping.

I would 100% buy these pants again.

They’re comfortable, durable, and even look nice enough to wear when exploring urban areas.

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kuhl free radikl men's hiking pants being worn on a hike next to a lake
Kühl Free Radikl pants are flexible and comfortable for hiking and camping.

What I Like

  • Very Comfortable
  • Panels of stretchy material make sitting and climbing more comfortable.
  • Sturdy Material
  • Lightweight
  • Great for different changing temperatures.
  • Fit nicely around waist.
  • Don’t tear when walking through thick brush.

What I Don’t Like

  • Little loose for a tapered fit pant.
  • No zippered pockets.
  • Back phone pockets aren’t very functional.

Have questions about the Kühl Free Radikl pants? Leave a comment below.

by Jenni
Jenni grew up in a small town in Idaho. With a family that loves camping, she has been towing trailers since a very young age.

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