Siren 4 Thermo Mid Zip WP Boot - Women's
Size:
Quantity
Only 3 In stock
Why We Like The Merrell Siren 4 Thermo Mid Zip WP Boot
When we won't let winter interrupt our hiking addiction, we slip into the Merrell Siren 4 Thermo Mid Zip WP Boot to keep from slipping and sliding on the trail. This winter hiking boot is snowproof with its waterproof membrane and full-grain leather uppers, and it's built to keep our feet warm with 200g Primaloft Gold Eco insulation packed inside. Snow and ice would keep us inside, either, thanks to Vibram Arctic Grip rubber outsoles, which are made for cold and slippery winter conditions. Made with a women-specific fit, the Siren 4 Thermo lets us enjoy 4-season hiking with warm feet and good grip on snowy and icy surfaces.
Details
- Insulated winter hiking boots with a women-specific fit
- Leather uppers are durable and weather resistant
- Proprietary membrane adds breathable waterproofing
- Medial zippers make boots easy to slip on and off
- 5mm lugs dig into snow for better traction
- Moderate 8mm heel to toe drop cushions our heels
- Protective toe cap to prevent stubbed toes
- Cleansport NXT treatment for odor control
- Item #MERZ2TH
- Responsible Collection
- Recycled/Repurposed
- Upper Material
- full-grain leather, synthetic knit
- Waterproofing
- Merrell Dry
- Insulation
- 200g PrimaLoft Gold Eco (recycled polyester)
- Lining
- 100% recycled fleece
- Closure
- lace, zipper
- Footbed
- PU, Solarcore Aerogel
- Midsole
- FloatPro Foam
- Sole
- Vibram Arctic Grip
- Shaft Height
- ankle
- Claimed Weight
- [single] 1lb 3oz
- Manufacturer Warranty
- limited lifetime
- Activity
- winter hiking, casual
Reviews
Q&A
What do you think about this product?
Overall Rating
4.5 based on 95 ratings
Review Summary
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Selecting an option will reload the available reviews on the pageFebruary 14, 2025
My feet feel warm, snug, cozy - and happy!
I thought about returning these boots because I wasn't sure I would get enough use out of them here in the Pacific Northwest. ..but then it snowed....and I was very glad to have them. I got my usual size, which is almost a bit big in these particular boots, but that's ok because I can wear thick socks in them. I hope they soften up a little so that I can snug up the laces to get the fit even snugger, but I will add another insole if necessary to help with that. The boots so far are keeping my feet warm and cozy, and seem to have a good grip on medium to hard packed snow, though of course not on ice. I especially love how they keep my ankle feeling warm and protected. Unfortunately I am so far not able to get the boots off with by just unzipping them, which is disappointing, as that was a key reason I opted for these boots. That problem may be because I have a fairly low volume foot, and I have to tighten them to the max to get the snug fit I want. However, having bought them on sale, they are still a great value, and I look forward to wearing them for years to come because overall I love how warm, cozy and secure my feet feel in them, and how that makes me feel safe and confident as I stride along in snowy conditions. I am a firm believer in keeping my feet (and ankles!) happy, and these boots do the job.
Originally reviewed on Merrell
February 2, 2025
Not for walking
These are very warm and relatively comfortable. However, the traction is non-existent. Unless you have a clear path or powdery snow you will slide all over the place. I tried walking on packed snow and hurt my knee because my foot slid immediately.
Originally reviewed on Merrell
February 1, 2025
Please keeping making them
These shoes are amazing, and I’m saddened that they are not made anymore. I was hoping in buying them for my daughter next winter since they didn’t have her size this year. I love mine, they are warm, very comfortable, and easy to put on with the zipper. I hope they change their minds and bring them back next winter!
Originally reviewed on Merrell
February 1, 2025
Love my Merrells
Took my Merrells to Iceland in December. They were warm, and comfortable for walking a lot. Just what I was looking for!
Originally reviewed on Merrell
January 26, 2025
Siren 4 Thermo mid zip waterproof boots, perfect.
They fit perfect and are so warm and comfy, would buy again
Originally reviewed on Merrell
January 25, 2025
Love them!
Love these boots! Very warm and comfortable, very pleased!
Originally reviewed on Merrell
January 23, 2025
Grear value and style
Lightweight warm and waterproof. They also look great under jeans
Originally reviewed on Merrell
January 23, 2025
Wonderful
These have been extremely useful in sub zero temp. My feet love them. I did order a 1/2 size up. Very comfortable, warm. The fut is perfect.
Originally reviewed on Merrell
January 20, 2025
Amazing boots, go for a .5 size bigger
They are amazing! Just what I was looking for. They are comfy but need to be broken in a bit, but overall they are warm and super good in the snow and okay on the ice. If you get them, go for half a size bigger or a whole size if you use thick socks.
Originally reviewed on Merrell
January 13, 2025
Ran small
They were really small and now they don’t have anymore in stock
Originally reviewed on Merrell
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