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Merrell  Thermo Chill Mid Waterproof Hiking Boots - Women's

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Tackle trails in the cold and snow in the women's Merrell Thermo Chill Mid Waterproof winter hiking boots. Low-bulk insulation and waterproof uppers keep your feet warm and dry for miles of adventure.

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Features

  • Waterproof, polyurethane-coated leather and mesh uppers
  • 200 g lightweight, low-bulk insulation for warmth and comfort
  • Bellows tongues keep out debris
  • Metal hooks; lace closures
  • Protective rubber rands and toe caps
  • Removable Kinetic Fitâ„¢ Base contoured insoles provide flexible support
  • Molded nylon arch shanks
  • EVA midsoles for stability and comfort

Imported.

View the Merrell Thermo Product LineView all Merrell Women's Winter Hiking Boots

Technical Specs

Best Use

Hiking

Snowshoeing

Footwear Height

Over-the-ankle

Footwear Closure

Lace-up

Waterproof

Yes

Type of Waterproofing

Waterproof/breathable membrane

Upper

Waterproof, polyurethane-coated leather/mesh

Lining

Synthetic

Insulated

Yes

Insulation

200 g insulation

Midsole

EVA

Support

Molded nylon arch shank

Outsole

Rubber

Weight (Pair)

1 lb. 14 oz.

Gender

Women's

Size Chart

Fits slightly large based on reviews

Runs smallRuns large
Merrell Footwear - Women's
55.566.577.588.599.51010.51111.512
U.S. Women's55.566.577.588.599.51010.51111.512
UK2.533.544.555.566.577.588.599.5
EU3535.5363737.53838.5394040.5414242.54343.5

Reviews
214 reviews with an average rating of 4.6 out of 5 stars

88% 76 of 86 reviewers recommended

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Most Helpful Favorable Review

4 people found this review helpful
5 reviews with an average rating of 5.0 out of 5 stars
1 year ago
Angel’s Landing approved!
Bought these for a winter trip to Bryce and Zion. My feet tend to get cold so I wanted something insulated for walking on snow. Bryce had a lot of snow-covered trails and these definitely kept me warm. In Zion, they had perfect traction for the chains portion of Angel’s Landing (without snow on a sunny day). Comfortable and warm. Would recommend!
amp4858

Most Helpful Critical Review

4 people found this review helpful
5 reviews with an average rating of 3.0 out of 5 stars
1 year ago
Unfortunately, they hurt my feet
First experience with this Brand. I can say they are very comfortable on the bottom. Unfortunately, the metal hooks at the top dig right into my ankle bone.
AF101230
mtnlvr
Location:Seattle, Washington
Age:55–64
Weight:100–125 lbs.
Height:5'2"
Typical Shoe Size:Womens 6.5
Rated 5.0 out of 5 stars
1 year ago

Love these boots.

I was a little nervous about how these would fit as I usually like a wide width because I like a wide toe box since I have metatarsalgia. They are perfect, plenty of room, yet still fits well in the heal, comfortable straight out of the box. My favorite boots yet, hope I can find something just like these for summer hiking. Waterproofing is great, they keep my feet warm and dry on my rainy Seattle outings. I think they will be perfect for snowshoeing as well, they have a nice ring to hook my gators to. I have not found them to be slick on Seattle streets when wet, nice grip. I found them true to size as I wear and bought a 6.5.

Age:55–64
Weight:100–125 lbs.
Height:5'2"
Typical Shoe Size:Womens 6.5

Overall Fit Rating

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Width

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Amanda S
Location:Southern Utah
Rated 5.0 out of 5 stars
4 years ago

High on a mountain top

I didn’t have time to break in these boots but no need! They were comfortable from the very first time I put them on my feet. Kept my feet warm and dry, hiking along the Oregon coast. Would absolutely recommend this boot!

Dog Walker
Rated 3.0 out of 5 stars
5 years ago

Thermo Chill Mid didn’t work out

I have been searching for a lightweight waterproof boot to replace my ancient Capra Bolts. i thought these would do the trick. Unfortunately, they did not. I wear a 10.5 slim. I usually get by with very thick socks. That worked well so that my foot was not slipping up and down at the heel. However, the boot comes up higher than what I expected. There is a rough place on the right boot near the tongue that isn’t on the left boot.I tried wearing them around the house to break them in but only succeeded in creating sore spots on the front of my shins. I will be returning them. I hope there will be more boots (and sales) available after the holidays.

Happy Hiker
Location:Winnipeg
Rated 5.0 out of 5 stars
1 year ago

Finally a boot that fits

I have wide feet and foot pain when walking in boots but these are perfect and extremely warm.

Response from Merrell
Merrell
1 year ago

Thank you!

Kelly B
Location:Kansas City Suburbs
Rated 5.0 out of 5 stars
4 years ago

Comfortable right out of the box

Ok, I have not yet hiked in them as I purchased them for an upcoming winter trip to Utah but I am very confident that they will do great as they are very comfortable right out of the box. And warm even with thin socks on. That said, I should have trusted my instincts and ordered a whole size larger than I usually would take in a casual shoe to allow room for my toes and thicker socks. I usually take a 7M and ordered these in 7.5 to allow for thick socks. In thin socks, my big toe is scraping the end of the boot and in thick socks, my toes are squeezed. I have medium to slightly wider feet and the width, while not roomy, seems fine without the thick socks.

HappyFeet
Location:Southcentral PA
Rated 4.0 out of 5 stars
4 years ago

Warm & comfy, but can be a trip hazard

My older Merrell hiking boots just couldn’t cut it in the ice and snow (my feet were literally freezing!) so I was delighted to find the Thermo Chill boots. Unfortunately, the first time I took them out of the trail, a lacing hook on my right boot caught on my left microspike and down I went - hard. I thought I could tighten the hooks, but they’re too strong to bend back with pliers. I hope Merrell comes back with a safer redesign, because these boots were warm and comfortable.

Dan Dan
Location:S.F. Bay Area, CA
Rated 5.0 out of 5 stars
6 years ago

It's Cold in Northern California During the Winter

I live in the Bay Area and lately some days are in the 30's and 40's. And lately that comes with rain! I bought these because we camp a lot and I needed a sturdy but super comfy and warm boot for hiking and schlepping around in the cold and rain. These are WONderful! I have arthritis in my feet so the inside of the boot - soft, cushy, warm and supportive - soothes my feet. I was out for a few hours in 45 degree rain yesterday and was dry and warm. When I got home and took the boots off my feet were warm! I experienced very good traction with them as well. Yes, they look a bit large on my feet but who cares! They are still a handsome boot. I love, love, love these!

amp4858
Weight:100–125 lbs.
Height:5'4"
Typical Shoe Size:Womens 6.5
Rated 5.0 out of 5 stars
1 year ago

Angel’s Landing approved!

Bought these for a winter trip to Bryce and Zion. My feet tend to get cold so I wanted something insulated for walking on snow. Bryce had a lot of snow-covered trails and these definitely kept me warm. In Zion, they had perfect traction for the chains portion of Angel’s Landing (without snow on a sunny day). Comfortable and warm. Would recommend!

Weight:100–125 lbs.
Height:5'4"
Typical Shoe Size:Womens 6.5

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Nini
Location:New Jersey
Rated 5.0 out of 5 stars
4 years ago

Amazing shoes

Now I finally have to write a review. We have a lot of snow here at the moment. It's freezing, and the blizzard was very heavy today. It's still very windy. Our supermarket is around the corner, and we walked there. I was wearing the Merrel Thermo Chill Mid Waterproof. I have had the shoes for a year, but the winter in 2019/2020 wasn't that bad. I hardly wore the shoes. But I've been wearing them every day since the end of 2020/2021. I always have warm feet, and the grip makes me walk safely. But today, it was the big test—no wet feet. I also stood in the snow for a while without moving. My feet stayed warm. Nothing went through. Wow, these are really some really great shoes.

AZ
Location:Atlanta, GA
Rated 4.0 out of 5 stars
5 years ago

My 1st pair of quality outdoor boots - love them!

These boots are incredibly comfortable, breaking them in has been pretty easy. I wore them on a short walk in GA, and my feet didn't overheat. I wore them for a few days in the winter in OH, and my feet stayed very warm. I deducted a star because the 4 metal hooks at the top for lacing open surprisingly easily if I bump into something, and they're so strong that I can't bend them back on my own, so my laces fall out. I've had to retie these boots a lot. I just stopped lacing them all the way up to avoid this, but I'll have to revisit this solution when I begin hiking so I can have proper ankle support.

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