Women's Siren Mid Thermo


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• Slip Lasted Construction
• Full Grain/Synthetic Leather and Breathable
Mesh Upper
• Polartec® 100 Lining
• M-Select FRESH naturally prevents odor before
it starts for fresh smelling feet
• Injection Molded TPU Heel Protection
• Bellows Tongue
• 7.5mm Narrow Gauge Webbing
• 4.5mm Ortholite® Anatomical Footbed

Midsole /Outsole
• Nylon 6.6 Injection Molded Arch Shank
• Q-Form® Triple Density Compression Molded
EVA Footframe
• Merrell Air Cushion Midsole
• 6mm Sole Lug Depth
• Vibram® Siren Song™ Sole/TC5+ Rubber
• Comfort Range to -4F/-20C

Women’s Sizes: 5-11

11 reviews
Average Rating: : 3.3
86% dit Taille comme prévu
14% dit Plus grande que prévue
0% dit Plus petit que prévu
  • Viewing 1 - 5 of 11 reviews.
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  • Excellent achat
  • By Anonyme
  • 15/12/2014
  • Was this review helpful? /

légères, chaudes, avec beaucoup de grip sur la semelle, très heureuse

Product Size Rating:

Larger than Expected

How do you most use this product?:


  • Love them !
  • By Suestg
  • 10/08/2013
  • 1 of 1 people found this review to be helpful.
  • Was this review helpful? /

I have been thru a lot of boots trying to find something comfortable and that lasts. This boot fit the bill.. I wear them everywhere.. Comfortable, feel great ! Will buy them again !

Product Size Rating:

Sized as Expected

How do you most use this product?:

For everything !

  • Only shoe for me
  • By Forest walker
  • 03/10/2012
  • 2 of 2 people found this review to be helpful.
  • Was this review helpful? /

I have bought this boot for the 15 years, I beat them to death, wear them everywhere all year long. They last forever, and I have only had one pair with stitching problems and they were replaced with no questions. I have tried on every pair of boots by Merrell and always go back to the Sirens they feel great, as comfy as slippers. My only complaint is that the store I usually buy from has stopped carrying this model so now I have to find a new place to by them.

How do you most use this product?:

Everywhere, through mud, muck, water, in the bush,at work, I'd wear them to bed if I could

  • Siren Mid thermo womens
  • By nattanya
  • 12/09/2012
  • Was this review helpful? /

I am on my seventh pair of these wonderful booties.. I have a very narrow heel and these are the only walking - hiking booties i have found that don't slip up and down. I wear them for every occasion. I used to have planters facitis, but since I found these Siren boots. , I have been cured and walk at least 5 k a day. About 2 years ago I had a pair replaced by you because the stitching had come loose. I have had 3 different colors and bought a new pair of black ones this week. they were $179.00 in the store , plus tax But they will last for at least 3 years They also protest my ankles What other hiking boot do you have with a narrow heel?

Merrell's Reply:

Hello, Thank you for your great review. You could also have a look at the Avian Light Mid WTPF which has a similar fit. Thank you.

Product Size Rating:

Sized as Expected

How do you most use this product?:

for every occasion, shopping strolling, walking, hiking every day

  • Fantastic
  • By Ariana
  • 04/05/2013
  • Was this review helpful? /

I love these boots. I took them with me to South America last summer. They kept my feet warm hiking over the Andes, while being super comfortable and light weight. I then took them to the rain forest and slugged through swamps, bush and over rocky hills for a month. They weren't too warm and they kept my feet dry even when caked in mud! They also have great grip. I was out pacing the guide going down a super muddy slope to the point that he demanded to know what shoes I was wearing that didn't having me slipping and sliding everywhere. I find them to be the perfect amount of ankle support too - more than a running shoe, but not so high as to restrict movement. They look great and are soooo comfortable and versatile. I'm usually at 7.5, sometimes an 8. In this case, size 8 fit me perfectly. The reason why they lost one star is for two reasons. 1) for such an fantastic shoe, the laces are terrible. Maybe they're too smooth, but they never stay done up even when double knotted. I stopped picking the burrs out of them specifically so they would have some grip. But this is a super minor flaw and easily fixed with new laces. 2) After a year of use (more like abuse) they have stopped being waterproof. According so responses to other reviews waterproof-ness is guaranteed, but I didn't hold onto my receipt, so I'm going to try waterproofing them myself and hope that works as well. When these give out I will definitely be buying them again.

Product Size Rating:

Sized as Expected

How do you most use this product?:

hiking, mountain hiking, slugging through mud, field work,

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