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KEEN  Revel IV Polar Waterproof Boots - Men's

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Get the agility of light hikers and the warmth of a down jacket with these KEEN insulated boots. They have 200 g of insulation plus heat-trapping materials underfoot. The soles offer exceptional grip.

Size: 9
Quantity
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Features

  • 200 g of KEEN.WARM recycled PET polyester insulation rated to -25°F (-32°C)
  • Notch in back for Achilles movement and comfort
  • High-abrasion rubber toe rands for added durability and protection
  • Original Fit has generous space across the forefoot for toes to splay
  • Heat Trapolator technology features 3 layers of heat-trapping materials underfoot
  • Thermal Heat Shield insoles capture warmth
  • Metal eyelets for added durability
  • Breathable textile lining
  • Eco Anti-Odor for natural, pesticide-free odor control
  • Nonmarking multidirectional lugs for increased traction
  • 5 mm multidirectional lugs for traction
  • Environmentally preferred premium leather from LWG-certified tannery for cleaner water
  • Weight (half pair): 1 lb. 8.25 oz.

Imported.

Comfort range is an approximate value based on high activity levels and can be affected by many conditions, including weather, wearer's activity level, fitness, metabolism, perspiration, circulation, exposure time, clothing and cold sensitivity. Comfort Range is an approximate value based on high activity levels and can be affected by many conditions, including weather, wearer's activity level, fitness, metabolism, perspiration, circulation, exposure time, clothing and cold sensitivity.
View all KEEN Men's Winter Hiking Boots

Technical Specs

Best Use

Hiking

Footwear Height

Over-the-ankle

Footwear Closure

Lace-up

Waterproof

Yes

Type of Waterproofing

KEEN.DRY waterproof, breathable membrane

Comfort Range

-25 degrees (F)

Upper

Waterproof leather/performance mesh

Lining

Breathable textile lining

Insulated

Yes

Insulation

200 g of KEEN.WARM recycled PET polyester insulation

Midsole

Compression-molded foam

Support

Stability shank

Outsole

KEEN.POLAR TRACTION rubber

Weight (Pair)

3 lbs. 0.5 oz.

Gender

Men's

Size Chart

KEEN Footwear - Men's
77.588.599.51010.51111.5121314151617
U.S. Men's77.588.599.51010.51111.5121314151617
UK66.577.588.599.51010.5111213141516
EU39.54040.5414242.5434444.545464747.54848.549
Foot Length (in.)9.69.81010.110.210.510.610.71111.111.2511.611.912.212.512.8

Sizing Notes

Measurements are stated in inches.

Reviews
55 reviews with an average rating of 4.3 out of 5 stars

86% 30 of 35 reviewers recommended

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Customer Images

Most Helpful Favorable Review

8 people found this review helpful
5 reviews with an average rating of 5.0 out of 5 stars
3 years ago
These are great in very cold weather
Received free product
The boots fit well despite the website saying they run small They initially felt fairly stiff, especially compared to my insulated Asolo boots, but this was likely due to the leather construction. They quickly lost most of their stiffness after I wore them around the house for a few hours and then by the second mile on my first hike, I did not notice any further stiffness and they were very comfortable. The temperature on my hike was in the low 30s and my feet never felt cold at all. I did remain still on the hike for over an hour as I photographed eagles. The next time I wore them was to shovel the snow on my driveway and sidewalks. The temperature outside was 11 below zero with a chill factor of 25 below zero. I was outside for about 2 hours clearing my home and both of my neighbor’s driveways and sidewalks. My feet stayed nice and warm the entire time. My fingers were very cold, despite heavy gloves and liners, so I know the boots have great insulating properties. I walked along an icy sidewalk to test their gripping properties and I felt exceptionally secure in these boots, even better than my other insulated boots. I have worn these boots on a variety of terrain, from muddy surfaces, rocky areas and on ice and snow and felt secure in every area. I live in the Central Northern part of Colorado and most of the trails around here are very rocky. I thoroughly appreciate the leather construction which provides good protection from rocks and debris on the trail. I would not have normally chosen leather as an option, but I was more than pleasantly surprised with how much I like these boots.
Rog1
Fort Collins, CO

Most Helpful Critical Review

3 people found this review helpful
5 reviews with an average rating of 1.0 out of 5 stars
10 months ago
falling apart after merely 3mths, light use
Feel and Walk good. Plastic toe wrap has separated after only 3 months of light use. Returning them, and trying another pair of same to determine if they were oddball lemons
David W Daub
MrFixit
Location:Cleveland, OH
Age:65–74
Weight:200–225 lbs.
Height:6'0"
Typical Shoe Size:Mens 11
Rated 4.0 out of 5 stars
2 years ago

Solid choice for Colder Weather

Received free product

These boots are a great cold weather choice for the city or trail. These arrived just before the Christmas “Bomb Cyclone” storm hit and my feet were warm and dry. I found these boots to comfortable from the start, requiring no break-in. The foot bed of the boot is wide and stable with ample lugs in the tread for traction in mud or snow. Nicely padded, the boot collars provide good support when properly laced with surgeon knots. These boots feature a metal loop attachment point near the toe box. No instructions came with the boots that indicated their purpose. I thought maybe these could be used to attach the boots to your pack or hang them. I then realized that perhaps they were intended to be an attachment point for gaiters. I attempted to attach my gaiters without success. The loops were just too far forward to function in this manner. Clipped on the loop I could not zip up the gaiters. The gaiters were just not wide enough. I had to clip onto the boot laces as I had in the past.

Age:65–74
Weight:200–225 lbs.
Height:6'0"
Typical Shoe Size:Mens 11

Overall Fit Rating

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Kaloochie
Location:Vancouver, WA
Age:55–64
Weight:250–275 lbs.
Height:6'2"
Typical Shoe Size:Mens 13
Rated 5.0 out of 5 stars
3 years ago

Great on snow and ice covered trails.

Received free product

Boots did not take long to break in. Very comfortable after a couple days use. The boots are comfortable and warm for the weight. Boots have a noticeable improved grip on snow and ice covered surfaces over other shoes and boots. In the last ice storm, I went outside with other shoes and had difficulties slipping. I put on these boots and had no problem walking on ice covered paths. Boots are waterproof and handled the wet trails that followed the ice. An additional 1/4" of overlap on the top of the tongue would improve the seal around the ankles, but overall the boots function well. The eyelet at the base of the tongue is great for connecting snow gaiters. If you want a comfortable fitting boot with a good basic design, has good traction for all conditions, this is a good option.

Age:55–64
Weight:250–275 lbs.
Height:6'2"
Typical Shoe Size:Mens 13

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bobbyb58
Location:Los Angeles, CA
Age:55–64
Weight:225–250 lbs.
Height:5'10"
Typical Shoe Size:Mens 12
Rated 4.0 out of 5 stars
2 years ago

A Good All Weather Boot

Received free product

REI gave me these boots to test and review. My overall reaction to them has been positive, with a couple of nits. I received these boots just before a two week trip to the D.C. area, where we had intermittent rain and a day of very light snow. Temperatures ranged from 8 to 62 F. This provided me some good opportunities to assess their performance around town and on the trail. The boots went on well, although I had minor issues getting the laces on the top hooks. The gap between the rivet and hook is not wide enough, so you have to position the lace and apply tension to snap it through. Potentially, a greater issue is the tongue. My ankles are a little thicker than most. The tongue design didn't keep it secure behind the boot top in all conditions, potentially giving dirt, snow or water an easier ability to enter. In my case, my pant leg overlapped enough to mitigate the issue during my use. I have sensitive feet, and found the boot extremely comfortable. It felt just a bit large, but less than a half shoe size. I was perfect with a thicker pair of socks on. Also, I don't wear mid-high boots to avoid ankle bone irritation. Nothing like that with these; so comfy! I wore the boot for up to six hours at a time, sometimes driving for up to an hour with them on. I had no breathability or comfort issues. They felt like a big but comfortable pair of slippers! I did not wear them with crampons, but the ringlet for that at the lacing base looked very sturdy. In summary: great feel and fit. The top lace hook access is a bit tight. I'd use my gaiters if I knew I'd be hiking through snow or gravely trails to mitigate the tongue concern. Overall, a good to excellent boot.

Age:55–64
Weight:225–250 lbs.
Height:5'10"
Typical Shoe Size:Mens 12

Overall Fit Rating

Runs SmallRuns Large

Width

Runs NarrowRuns Wide
Rog1
Location:Fort Collins, CO
Age:65–74
Weight:200–225 lbs.
Height:5'10"
Typical Shoe Size:Mens 12
Rated 5.0 out of 5 stars
3 years ago

These are great in very cold weather

Received free product

The boots fit well despite the website saying they run small They initially felt fairly stiff, especially compared to my insulated Asolo boots, but this was likely due to the leather construction. They quickly lost most of their stiffness after I wore them around the house for a few hours and then by the second mile on my first hike, I did not notice any further stiffness and they were very comfortable. The temperature on my hike was in the low 30s and my feet never felt cold at all. I did remain still on the hike for over an hour as I photographed eagles. The next time I wore them was to shovel the snow on my driveway and sidewalks. The temperature outside was 11 below zero with a chill factor of 25 below zero. I was outside for about 2 hours clearing my home and both of my neighbor’s driveways and sidewalks. My feet stayed nice and warm the entire time. My fingers were very cold, despite heavy gloves and liners, so I know the boots have great insulating properties. I walked along an icy sidewalk to test their gripping properties and I felt exceptionally secure in these boots, even better than my other insulated boots. I have worn these boots on a variety of terrain, from muddy surfaces, rocky areas and on ice and snow and felt secure in every area. I live in the Central Northern part of Colorado and most of the trails around here are very rocky. I thoroughly appreciate the leather construction which provides good protection from rocks and debris on the trail. I would not have normally chosen leather as an option, but I was more than pleasantly surprised with how much I like these boots.

Age:65–74
Weight:200–225 lbs.
Height:5'10"
Typical Shoe Size:Mens 12

Overall Fit Rating

Runs SmallRuns Large

Width

Runs NarrowRuns Wide
Micah
Rated 4.0 out of 5 stars
11 months ago

Crease

The boots are comfortable and seem durable enough, but after a few wears i noticed the along the front black rubber toe cap it is starting to pull away where a crease forms from walking. Other than that they are great.

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David W Daub
Rated 1.0 out of 5 stars
10 months ago

falling apart after merely 3mths, light use

Feel and Walk good. Plastic toe wrap has separated after only 3 months of light use. Returning them, and trying another pair of same to determine if they were oddball lemons

lonflobber
Location:Highland Lakes, NJ
Age:35–44
Weight:150–175 lbs.
Height:5'6"
Typical Shoe Size:Mens 10
Rated 5.0 out of 5 stars
3 years ago

Looks great, warm feet.

Received free product

These boots look great and fit perfectly - I wear a 10 and they run true to size. I'm more accustomed to zero-drop, lightweight boots, so these come in with more of a heel and are built like a tank. I traveled over streets, gravel, and trails with them and they kept me warm (rated for -20 degrees) and comfortable. Nice styling for a winter hiking boot as well. Highly recommended.

Age:35–44
Weight:150–175 lbs.
Height:5'6"
Typical Shoe Size:Mens 10

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Eveningmeadows
Location:Massachusetts
Age:55–64
Weight:175–200 lbs.
Height:5'9"
Typical Shoe Size:Mens 10
Rated 4.0 out of 5 stars
2 years ago

Great Winter Hiking Boot!

First, I noticed that these are now $60 cheaper than what I paid for them! They’re being discontinued. Too bad, because they are the only insulated hiking boot that was comfortable. I hope they add something similar in the future. They look like they will last for a few years. As a woman who has to buy a mens 10 because they don’t have a womens 11.5, I appreciate the gender neutral color. A friend has the women’s and they are the same color as mine. I wish all mens boots, sneakers would offer a neutral color for women who have to buy men’s. They are comfortable, a bit wide in the heel for a women, but work with heavy socks. Very warm, excellent for cold, snowy, slushy days. They are waterproof, not all that say they are waterproof are actually waterproof. They have good traction for hiking and aren’t overly heavy. They are sturdy enough so that I don’t feel the rocks and roots on the trails. Hopefully they will last for years.

Age:55–64
Weight:175–200 lbs.
Height:5'9"
Typical Shoe Size:Mens 10

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Clw3
Location:Oak Harbor, WA
Age:65–74
Weight:175–200 lbs.
Height:5'11"
Typical Shoe Size:Mens 11
Rated 5.0 out of 5 stars
3 years ago

Best boot I've worn

Bought my first pair in Banff when the weather was -20. Totally lived up to its warmth claims. Been on many a ski trip with these boots and they have served me perfectly. Wide toe box really improves comfort.

Age:65–74
Weight:175–200 lbs.
Height:5'11"
Typical Shoe Size:Mens 11

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Anonymous
Location:Cleveland, OH
Age:25–34
Weight:150–175 lbs.
Height:5'6"
Typical Shoe Size:Mens 8
Rated 1.0 out of 5 stars
3 years ago

Cheap build

Top buckle broke off on second time wearing

Age:25–34
Weight:150–175 lbs.
Height:5'6"
Typical Shoe Size:Mens 8

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1 - 10 of 55 Reviews

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