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Merrell Isotherm Zip Boots - Waterproof, Insulated (For Men)

Item #4519C
$97.95 Save 30% Compare at $140.00
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About Merrell Isotherm Zip Boots - Waterproof, Insulated (For Men)

Closeouts. Navigate icy sidewalks or snowy trails in Merrell's Isotherm zip boots. Your feet will appreciate the protection of a waterproof breathable membrane and 400g PrimaLoft® insulation.


Specs about Merrell Isotherm Zip Boots - Waterproof, Insulated (For Men)

  • Waterproof (All),Insulated
  • Waterproof materials: Waterproof breathable membrane
  • Insulation: 400g PrimaLoft®
  • Upper: Suede
  • Lining: Textile
  • Midsole: Ethylene Vinyl Acetate (EVA)
  • Outsole: Vibram® rubber
  • Height: 6"
  • Weight (pair): 2 lb. 12 oz.
  • Made in China
  • Visit our Winter Boot Guide
  • US shipments only


Do you own this product? Write a review and help others with their buying decisions!

4.129032 5 Overall Rating: 4.1 Based on 31 reviews

Most Helpful 5-Star Review

Verified Buyer Reviewed by Steep Creep from Cheyenne Wy on Tuesday, February 28, 2012
Great boots by Merrell ounce again, warm, great traction on ice and snow. Merrell Does it Again Great Boots!! Delivery was great as always 3 days awsome as usual. Thanks Sierrra Trading Post.
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  • Reviewed by Bobby Brown from Texas on Wednesday, April 24, 2013
    I have a bad ankle which makes it very hard to get boots on my right foot. I purchased these in hopes the zipper would allow me to easily slip them on. However with socks on I could barely get them on and when I did they were extremely tight almost like the were the wrong size. Perhaps these just run small or perhaps they were marked wrong? I have had other Merrill's in size 10 that fit perfectly. I really liked these boots and would have kept them if they had fit properly.

    Bobby Brown
  • Reviewed by LeWorker from Michigan on Tuesday, March 12, 2013
    Merrell shoes/boots are always constructed well and these boots were no exception. The sizing was just way off. My husband wears a size 9.5/10 and could barely get his foot in the boot and could not get the zipper up. I wear a womens 8 and it felt snug on my foot. Sierra made the return quick and easy.
  • Verified Buyer Reviewed by 66thud from Berkeley, CA on Thursday, January 24, 2013
    Going to snow country every year right after Christmas, I need a winter boot that can be removed quickly before entering the main part of the house. An extra benefit is how easily they can be removed and put back on in the security line at the airport. They are a lot more comfortable than I expected.
  • Verified Buyer Reviewed by Happy boot buyer from Central Pennsylvania on Sunday, January 6, 2013
    very pleased with the comfort of the footbed. One the the most comfortable boots I've ever stood in. With that said walking will take some wear in. The uppers are extremely stiff and un comfortable from the box. I've worn these for 3 days working outdoors and they are slowly softening but break in could be a while. They are warm and working in snow each day they are waterproof. Very easy on and off. The zipper pull is very small and somewhat hard to grasp. I was surprised that the boots were as light weight as they are.
    Overall I give a thumbs up for these boots. I think once the uppers soften and with how comfortable the footbed is these will become my go to winter boots.
  • Verified Buyer Reviewed by rebel from somers, CT on Thursday, November 29, 2012
    Boot is tight. Order next size up or wear thin socks.

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About Merrell

The story of Merrell boots all started with a guy named Randy Merrell, who began handcrafting leather hiking boots back in 1981, shortly after graduating from industrial shoemaking school. By the mid-80s, Randy’s boots had already gained critical acclaim before being named “best boots in the world” by Backpacker Magazine. The next decade saw the arrival of new footwear, including the ever-popular Jungle Moc, which helped launch the after-sport category. Today, Merrell hiking boots, running shoes and sneakers are still among the best on the market, always combining the newest technology, innovative designs and outstanding comfort. Whether you hike, run, walk or just appreciate high-quality shoes and boots, we’re confident that you’ll love Merrell shoes.