How to Choose Hiking Boots
KEEN Revel IV High Polar Boots - Men's
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Don't let wild weather keep you indoors. Your feet will love the warmth and waterproof protection of the men's KEEN Revel IV High Polar boots, rated to -40°F for comfort in extreme cold.
Shop similar products- Waterproof leather and performance mesh uppers are backed with breathable textile linings and KEEN.DRY waterproof/breathable membranes to keep your feet comfy and dry
- Environmentally preferred premium leather is sourced from an LWG-certified tannery
- KEEN.WARM recycled PET insulation is rated to -40°F/-40°C for warmth in extreme conditions
- Thermal Heat Shield insoles capture warmth
- Compression-molded EVA midsoles supply cushioning
- Stability shanks deliver lightweight support
- Metal eyelets add durability
- Eco Anti-Odor footbeds are infused with probiotic technology that naturally breaks down odor in sweat without heavy metals or hazardous chemicals
- Notch in back provides Achilles comfort
- Nonmarking KEEN.Polar Traction outsoles provide grip on snow and ice, with 5mm multidirectional lugs for excellent traction
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.
View all KEEN Men's Winter Hiking Boots| Best Use | Hiking |
|---|---|
| Footwear Height | Mid-calf |
| Footwear Closure | Lace-up |
| Waterproof | Yes |
| Type of Waterproofing | KEEN.DRY waterproof breathable membrane |
| Comfort Range | -40 degrees (F) |
| Upper | Leather/performance mesh |
| Lining | Textile |
| Insulated | Yes |
| Insulation | KEEN.WARM recycled PET fibers |
| Midsole | EVA |
| Support | Stability shank |
| Outsole | Rubber |
| Weight (Pair) | Unavailable |
| Gender | Men's |
| Sustainability | Contains leather from a tannery rated by the Leather Working Group (LWG) Contains recycled materials |
KEEN Footwear - Men's
| 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 | 11 | 11.5 | 12 | 13 | 14 | 15 | 16 | 17 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| U.S. Men's | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 | 11 | 11.5 | 12 | 13 | 14 | 15 | 16 | 17 |
| UK | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 | 11 | 12 | 13 | 14 | 15 | 16 |
| EU | 39.5 | 40 | 40.5 | 41 | 42 | 42.5 | 43 | 44 | 44.5 | 45 | 46 | 47 | 47.5 | 48 | 48.5 | 49 |
| Foot Length (in.) | 9.6 | 9.8 | 10 | 10.1 | 10.2 | 10.5 | 10.6 | 10.7 | 11 | 11.1 | 11.25 | 11.6 | 11.9 | 12.2 | 12.5 | 12.8 |
Sizing Notes
Measurements are stated in inches.
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Most Helpful Favorable Review
Great winter boot for below freezing temps
Rjack4 years ago
The fit is true to size so I went with one size up to accommodate thicker winter socks. The fit is a touch big with thin socks but perfect with a typical wool med to heavy weight sock by going up one size. The toe box is slightly smaller than most Keen shoes but still plenty wide to allow toe movement. I wear a size 12 Keen and bought a 13. A 12 would have been too small with heavy wool socks. The boot is stiff and will take some break in time but not painful to wear. The laces are not as bright red as they appear and are more of a maroon color. They look better in person unless you want bright red laces.
The one con is the felt insoles. They are glued in and not removable. They are comfortable and provide a decent arch support but it would have been nice to have the option to swap them out if a better arch support was needed or replace them once the felt wears down.
The temps haven’t fallen below 50 yet and they are too warm to wear now. I’ll update the review once I’ve put some miles on them this winter.
Rjack
OH
18 people found this review helpful
Most Helpful Critical Review
Desingn Flaw imho.
Paul Stovall3 years ago
I wanted to love these boots but as soon as i pulled the laces to tie them up the small piece of fabric that the laces cross thru ripped off on ONE boot. Took them back to REI and have ordered another pair. The staff at REI were excellent and agreed with me that this looks like a design flaw. I plan to also share this feedback with KEEN.
Paul Stovall
14 people found this review helpful
Customer Images
Arlene B.
He is thrilled!!!
8 months ago
No more brace. We were looking for a high top boot that would support his bowed ankle due to paraplegia, we are pleased with the support. We wanted the added insulation due to cold feet and it has helped. We were concerned about not having enough room for the toesies but they run wide. We were concerned that his high arch would not allow him to get the boot on, but it was not an issue. We were concerned about fluoride issues because toxic socks was what was given him red and swollen feet but because Keen boots are PFAS free, that's not an issue. You can see from the unsolicitated photos that he is thrilled!!! Thank you Keen Boots
Originally posted on KEEN
Brian c.
Unwearable
1 year ago
[This review was collected as part of a promotion.] The Boot lace islet on both boots stabbed into my ankles.
Originally posted on KEEN
Savannah AL
A Calf Height Boot
3 years ago
In a sea of ankle high boots the Keen Revel IV Polar boot stands out. The boot reaches my calf and I bought it specifically for shoveling snow in my driveway. Things that stood out: (1) The toe box is not as wide as a typically Keen boot. I wouldn't describe it as narrow, it just is not generous. (2) The material(s) seemed quality, not a cheaply made boot. (3) The sole is fairly aggressive. (4) This is the worse one - the heel seemed flat-footed. My foot felt like it was in a moccasin instead of a boot. It didn't feel right to me and the only reason that I ultimately returned it. It might appeal to some.
Dylan
Quality and Durability Fail
9 months ago
I recently wrote a high star review on these boots back on 8/26/24. Here I am degrading the review and dropping it down to two stars on 10/28/24, after finally getting around to wearing them on a cold morning hunt. While lacing these boots up the eyelet of the laces completely tore off my boot while tightening down and lacing them. I did not think I had to worry about the quality and durability of these boots because of the price point.
Originally posted on KEEN
onsenboy
Bellevue, WA
Pointy toes that I hate.
1 year ago
The shape has changed to narrower. They are shaped more tapered and pointy. They are no longer good for my wide foot.
Age:65–74
Weight:150–175 lbs.
Height:5'11"
Typical Shoe Size:Mens 11
No, I do not recommend this product
Rjack
Ohio
Great winter boot for below freezing temps
4 years ago
The fit is true to size so I went with one size up to accommodate thicker winter socks. The fit is a touch big with thin socks but perfect with a typical wool med to heavy weight sock by going up one size. The toe box is slightly smaller than most Keen shoes but still plenty wide to allow toe movement. I wear a size 12 Keen and bought a 13. A 12 would have been too small with heavy wool socks. The boot is stiff and will take some break in time but not painful to wear. The laces are not as bright red as they appear and are more of a maroon color. They look better in person unless you want bright red laces. The one con is the felt insoles. They are glued in and not removable. They are comfortable and provide a decent arch support but it would have been nice to have the option to swap them out if a better arch support was needed or replace them once the felt wears down. The temps haven’t fallen below 50 yet and they are too warm to wear now. I’ll update the review once I’ve put some miles on them this winter.
Age:45–54
Weight:175–200 lbs.
Height:6'1"
Typical Shoe Size:Mens 12
Yes , I recommend this product
Frank
Denver, CO
Great buy.
2 years ago
Now that we have had a couple of snow storms, I was able to try these boots out. I think they are a fantastic pair of boots. The are warm and comfortable. I'm very impressed with the traction on ice. I actually had to touch the sole with my fingers to believe it. That is when I noticed that parts of the sole had a gritty substance to help with the traction. Very smart engineering. I will say that sonce they are not completely broken in yet, they are a little stiff. I'm sure that with time, the stiffness will go away. Awesome boots, go get you some!
Age:45–54
Typical Shoe Size:Mens 10.5
David
Revel 4 Long Term Review
1 year ago
I have used these boots for two full seasons now. That’s about 6 days a week during the 4 winter months of the year where I live. I originally bought these as a mid-temp option to compliment my Baffin Snowmonsters that I use on the coldest days. I found they perfectly suited this need. They have been comfortable and warm from 40 degrees down to about 10F. They are lightweight and were extremely comfortable right out of the box. I especially appreciate the wide toe box. From the durable grommets to the lined insoles there are a lot of quality details. The D ring works really smoothly for attaching my OR gaiters and the bit of elastic in the loop makes them easy to attach. My only complaint about these boots is that within a month the rands started separating from the uppers on both boots. I applied some Aquaseal SR to the seams (as seen in photo) and haven’t touched them since.They continue to be perfectly waterproof. These boots also work fairly well for winter fat biking, but the tread is not ideal for pedal feel. As expected they excel for winter hiking and snowshoeing. Overall, they are the most comfortable boot I’ve ever had. If it wasn’t for the slight rand separation I would absolutely give them 5 stars.
Originally posted on KEEN
Jeff
Nice Boot, but wish they were warmer and more waterproof
2 years ago
I work in these boots all day at a ski resort and they they are the most comfortable boots I can find for being out in the Winter elements for long periods of time. My toes are cold most of the day so the temp rating is not accurate and they do leak water once they get saturated. I have been Tod to re-apply water proofing and my feet still get wet. I have worn these boots for multiple photography trips to Iceland and I add heated socks or footbeds to stay warm. With small improvements these boot could be the best on the market. Despite these issues I still like the boots and would recommend because everyone has a different experiences.
Originally posted on KEEN
Stan C.
Polar boot my foot!
2 years ago
How you get off calling this a polar boot is totally beyond me. I bought these in preparation for moving to Norway for a couple years and I am beyond disappointed. These are not waterproof at all. One day out in the field in eastern Finmark and they are totally soaked through. Now I can't even get replacements because you won't ship to Norway and somehow have distributors in Denmark and Finland but not Norway. I want my money back. I have used other keen boots and thought I could trust the descriptions and specifications but clearly I cannot. If these can't keep my feet dry walking through snow then how can you call it a polar boot?
Originally posted on KEEN
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