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Circadia Polar Mid Hiking Boot - Women's

3.5714285714285716 out of 5 stars
14 Reviews
Color:Black/Cloud Blue


Size Chart


Why We Like The KEEN Circadia Polar Mid Hiking Boot

Peaceful winter hikes are quickly ruined by cold or wet feet, which is why we lace up the Circadia Polar Mid Hiking Boot for a cozy, dry performance on cold-weather treks. A quick-drying, breathable liner and waterproof construction manage inside and outside moisture, while an insulated upper and footbed provide all-around warmth.


  • Winter hiking boots help you tackle snowy or icy trails
  • Leather and mesh uppers are durable and water-resistant
  • KeenDry membrane for breathable, waterproof performance
  • 200g of lofty KeenWarm insulation warms feet without bulk
  • High traction rubber soles grip onto slick or wet surfaces
  • Air-injected foam midsoles provide lightweight cushioning
  • Eco Anti Odor uses natural probiotics to keep boots fresh
  • Heel capture system stabilizes foot for added support
  • Item #KENZ5JM
Upper Material
leather (Leather Working Group ceritified), mesh, PFC-free DWR
KeenDry membrane
200g KeenWarm (synthetic)
Temperature Rating
Thermal Heat Shield
LuftCore, high density foam
KeenFusion rubber
Claimed Weight
[single, size 7] 1lb 1oz
Manufacturer Warranty
1 year
hiking, backpacking

Overall Rating

3.5 based on 14 ratings

Review Summary

1 Stars - 3 reviews
2 Stars - 0 reviews
3 Stars - 3 reviews
4 Stars - 2 reviews
5 Stars - 6 reviews

What do you think about this product?


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5 out of 5 stars

January 4, 2024


Bought these for my girl as Christmas gift, she loves them and what the company does for deforestation.

Jonathan D.

Originally reviewed on KEEN

3 out of 5 stars

December 21, 2023

Warm but be careful with straps

[This review was collected as part of a promotion.] The boots definitely have kept me warm in the snow but a strap on both boots ripped within the first week of wearing them.

Elisabeth W.

Originally reviewed on KEEN

1 out of 5 stars

December 16, 2023

Opening too small

I could not get my foot into the boot. I have very high arches and the opening of the boot is not big enough for my foot to fit through. Very disappointed.

Margaret M.

Originally reviewed on KEEN

5 out of 5 stars

July 25, 2023

Comfy boot, I feel stable

Comfy boot, I feel stable and safe in this light weight boot. I love these boots, great for hiking.

Carolina G.

Originally reviewed on KEEN

5 out of 5 stars

July 23, 2023

Three season comfort!

Its seems like I always have cold feet - fall, winter, spring. I love the mid-high ankle support for just a few inches of snow! Keen shoes always fit my feet. I can put on s new pair and wear them all day, even if I'm going on a hike. They are also reliably well made and will literally last for years. I now have a closet full of Keen footwear for any season or need - dressy sandals to utilitarian every day wear to hiking on the wettest and/or muddiest trails.

Carol B.

Originally reviewed on KEEN

5 out of 5 stars

January 11, 2023

Love These Boots!

Just what I was looking for in a winter boot! Lightweight, super warm with 200 gm insulation, wide toe box, comfortable leather & waterproof. Perfect for winter hiking & snowshoeing with thick socks & gaiters. Sizing reference - I wear a size 10 in Keen Presidio, Voyager, sandals, Kaci Winter boot & usually wear a 10.5 in winter boots with thick socks. Tried on the 9.5 & 10, chose the size 10 because of wearing thick socks & needing more room in the toe box with my wide feet.

Julie G.

Originally reviewed on KEEN

5 out of 5 stars

January 2, 2023


Very comfortable right out of the box. Good warmth builds up in these - forgot I left on when I got to work, took off a bit later and was shocked, but happy, about amount heat generated. Could be a bit wider - not sure what has changed in the width program but these are a wide but don’t seem as generous as in the past pairs of wides that I have had. Same with other new pair of polar boots purchased - could be bit wider.

Cheryl M.

Originally reviewed on KEEN

1 out of 5 stars

December 27, 2022

stop with the "girly" colours

Hi buy Keen boots and shoes as I have short wide feet and these are the only ones that fit. However, despite other top brands (Oboz, Merrel, Vasque) now making more neutral colored boots and shoes for women, Keen keeps adding bright baby blue and bright purple to their boots that are loud and clash with just about everything. These boots are a good example, changing laces does not work given the baby blue lace "straps" and the other color isn't any better.


Originally reviewed on KEEN

4 out of 5 stars

December 19, 2022

Love my new Keens

They are very similar to my old Keens which makes me very happy. I wear them when I go out shopping, hiking and for snowshoeing. I love the fit, the arch support and comfort on my high instep. The only disappointment was the lack of a loop pull on the tongue for loosening them up to get them off. I'm thinking of taking to them to our local shoe repair and having them add some loops.

Janine B.

Originally reviewed on KEEN

3 out of 5 stars

December 10, 2022

Great boot, uncomfortable design flaw

These boots fit true to the size chart (measure your foot). Plenty of width in the toe box for feet and winter socks. They are as warm as you'd expect from 200 gm insulation. Problem: I tried two different sizes (5.5 and 6) and both press on the front of my instep (the shoe presses on the top of the foot behind the toes). This cannot be modified by loosening the laces. I don't have high arches or a high instep, just average, slightly bony feet. The shoe's upper doesn't have enough depth at the instep for me.


Originally reviewed on KEEN