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Merrell  Coldpack 3 Thermo Mid Waterproof Hiking Boots - Men's

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Keep your feet dry no matter the conditions in the men's Merrell Coldpack 3 Thermo Mid Waterproof hiking boots. Toasty insulation and fleece linings combine to keep your feet warm on chilly hikes.

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Features

  • Waterproof full-grain leather and mesh uppers
  • Waterproof membranes seal out water and let moisture escape
  • 100% recycled fleece linings
  • 200 g synthetic, lightweight, low-bulk insulation for warmth and comfort
  • Metal hooks and 100% recycled laces and webbing
  • Bellows tongues keep out debris
  • Protective and abrasion-resistant rubber toe caps
  • Solarcore® Aerogel insoles provide superior warmth underfoot while being extremely flexible and ultrathin
  • 100% recycled mesh footbed covers
  • Treated with Cleansport NXT™ for natural odor control
  • Removable footbeds are made with 5% recycled polyurethane; Merrell Air Cushion in the heels absorbs shock and adds stability
  • Molded nylon arch shanks
  • Super Rebound Compound midsoles provide durable shock absorption to help reduce torque and allow for a smooth transition into the midfoot
  • Vibram® Arctic Grip All Terrain outsole compound is designed to effectively extend the winter traction season, due to the enhanced durability and versatility
  • Vibram XS Trek Evo outsole lug pattern is designed to provide optimal balance of traction and flexibility on wet surfaces

Imported.

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

Technical Specs

Best Use

Hiking

Footwear Height

Over-the-ankle

Footwear Closure

Lace-up

Waterproof

Yes

Type of Waterproofing

Waterproof/breathable membrane

Upper

Full-grain waterproof leather

Lining

Recycled fleece

Insulated

Yes

Insulation

200 g recycled fleece

Midsole

EVA

Support

Molded nylon arch shanks

Outsole

Vibram Arctic Grip rubber with Vibram XS Trek Evo

Weight (Pair)

2 lbs. 7.5 oz.

Gender

Men's

Sustainability

Contains recycled materials

Size Chart

Fits slightly large based on reviews

Runs smallRuns large
Merrell Footwear - Men's
77.588.599.51010.51111.51212.5131415
U.S. Men's77.588.599.51010.51111.51212.5131415
UK6.577.588.599.51010.51111.51212.51314
EU404141.5424343.54444.5454646.547484950

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

91% 61 of 67 reviewers recommended

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Average Width

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Average Overall Fit Rating

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Geoff
Location:Victoriaville, QC
Rated 2.0 out of 5 stars
2 years ago

Too low

The fit and the materials of this boot are really great. They would be comfortable except for the fact that the ankles are exposed and the cold and snow get in. They are way too low. They're not really boots in fact, more like shoes. It's impossible to hold pants around them, they always slip off on the back because there is so little wiggle room. You I have to always wear them with good gators that go low on the back, and ironically they don't have gater hooks. I wouldn't have but these shoes but i had to get higher boots replaced and there weren't any other wide models available.

Response from Merrell
Merrell
2 years ago

We value and appreciate your constructive feedback.

John
Location:Central, Ohio
Rated 5.0 out of 5 stars
2 months ago

My Merrell's

I have Merrell shoes before and added to my foot gear with these and they did not disappoint. The shoes work well for me, fit is great, they walk well wuth plenty of support and keep your feet flat and level on the ground, and they look great too. I wore these to a Buffalo Bills game, on 11-16-25. The temperature was around 38 degrees, with wind chill down to freezing. I was wearing electric socks. However, I never turned the socks on and my feet never got cold. I was wanting to see how long my feet would stay comfortable and I should have known, they did not disappoint me. We were outside for around 8 to 9 hours. Again, I would recommend Merrell shoes and boots to anyone.

Response from Merrell
Merrell
2 months ago

Thanks for your great feedback John!

Ben from the north
Location:Quebec City Qc
Rated 2.0 out of 5 stars
1 month ago

Disappointed

not what I was expecting not a hiking boot, there is no loop to hang gaters and the tongue does not go high enough and will not protect against the snow . I purchased this boot, thinking it would replace my old.J39499 Opti warm 200 that had all the characteristic that I was looking for accept the Vibram sole. The old boots were very slippery on packed snow or icy surfaces. The positive thing about my purchase was that it had Vibram sole. I should have looked better and for perhaps should’ve gone to a store to try and look at the product.please Merrill use more the Vibram sole on your winter products.

George
Location:Boston, MA
Rated 2.0 out of 5 stars
1 week ago

Not As Durable Ad I Thought

As a delivery driver I’ve been wearing these everyday in January when there’s snow, sleet, slush etc. At first everything was great, but in the last week of month, I noticed my socks were getting wet despite the waterproof claim. I looked at the shoe and couldn’t find any visible holes so I’m not sure what going on. Maybe if you’re wearing these every once in a while or a couple times a week in not so wet environment, the shoes are great, but everyday wearing and thousands of steps per day, I don’t think it’s going to hold up well.

Nate
Location:Northern Il
Rated 5.0 out of 5 stars
2 weeks ago

These are my dad boots :)

They showed up this morning, I put them on with some of the thicker socks I'd wear with my leather boots, my foot was instantly compressed, I thought "arg, this has been a consistently good size with this brand...," steped down a bit on the socks, tried again. Ah. That's better. Wore them for basic going to and being at work stuff and a little shopping while it's in the single digits. No complaints so far as they've been breaking in a bit. The leather lets me keep my boots on when I'd normally think I needed to change.

Response from Merrell
Merrell
1 week ago

Thank you for sharing your feedback Nate.

Anonymous
Rated 5.0 out of 5 stars
2 days ago

George
Location:Upstate NY
Rated 5.0 out of 5 stars
2 weeks ago

Here's to another twenty

Believe it or not I had to get a new pair of winter hiking boots as the ones I had for about twenty years finally gave out on me with holes developing in the boots. I looked at the name and saw the Merrell name. I looked you guys and found your site and got the same style boot. They fit like a glove and keep my toes and feet dry. If these last as long, I'll be ninety when I get my next pair. I have no problem recommending Merrell footwear to anyone who needs quality long lasting footwear.

Response from Merrell
Merrell
2 weeks ago

Thanks for the great feedback George!

NYCRetTeacher
Location:New York City
Rated 5.0 out of 5 stars
1 week ago

Excellent boots!!

First, finding shoes of any sort for me is a challenge. At a size 7 and needing a somewhat wider toe box, it is always a hunt. So I took a chance on this boots- I needed good, warm winter boots..and I hit a bullseye. The Merrells fit nicely, especially with a heavier wool sock, and came just in time for a 12" snowstorm and bitter cold here in NYC. I did add a gel insert that cover about ¾ of the insole for a little extra padding that I felt I needed.

Response from Merrell
Merrell
1 week ago

Thank you for the great review! It's truly appreciated!

Farris
Location:Nahant, MA
Rated 5.0 out of 5 stars
11 months ago

Fit as though they are custom made

My Merrell Moab 3 Thermo Mid Waterproof Wide Width boots fit at though they were custom made for me.right out of the box. This and other pairs of Merrell sneakers and boots fit as though I have been wearing them before I unboxed them. I use wide pairs to accomodate my bunions which have more room. I love Merrell footware and will always order them because of their special personal fit from they time they are brand new.

Response from Merrell
Merrell
10 months ago

Thank you for sharing your feedback Farris!

MrsPDB
Location:Detroit, MI
Rated 5.0 out of 5 stars
2 years ago

Husband LOVES these boots!

I got these boots as a Christmas gift for my husband. He is over the moon about these! When he put them on he said “I can’t believe the tongue is even padded. These are so comfortable!” The next day, we took the dog for a walk and he wore the boots. He couldn’t stop going off about how much he loves these! “I can’t believe how comfortable these boots are, and I’ve never heard of this brand!” Highly recommend these :)

Response from Merrell
Merrell
2 years ago

We're so grateful for your review!

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