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Siren 4 Mid GTX Hiking Boot - Women's

4.333333333333333 out of 5 stars
18 Reviews


Size Chart


Why We Like The Merrell Siren 4 Mid GTX Hiking Boot

Backpacking trips take us across diverse trail conditions which is why we depend on the Merrell Siren 4 Mid GTX Hiking Boot to keep our feet happy throughout the journey. Equipped with a rubber toe cap and an integrated midsole plate, this pair protects our feet from bruising on rocky trails, while the gusseted tongue stops debris from wriggling in and wreaking havoc. With a water-blocking GORE-TEX membrane and a sweat-wicking recycled mesh lining on their side, our feet stay dry through stream crossings and lung-burning climbs.


  • Versatile hiking shoe for soft, stable steps on multi-day treks
  • Breathable GORE-TEX membrane provides waterproof performance
  • Vegan, reinforced mesh upper for airflow and longevity
  • Women's specific fit provides a snug yet comfortable fit
  • Durable anti-odor footbed helps fights off fatigue and stink
  • Lightweight foam provides long-lasting shock absorption
  • Merrell-exclusive Vibram TC5+ rubber for traction on and off the trail
  • Item #MERZ2SK
Responsible Collection
Upper Material
mesh, TPU
GORE-TEX membrane
recycled mesh
lace (recycled)
women's specific
removable, PU, recycled mesh NXT top cover
FloatPro foam, rock plate
Vibram TC5+, 5mm lugs
Claimed Weight
1lb 9oz
hiking, backpacking
Manufacturer Warranty
limited lifetime

Overall Rating

4.5 based on 18 ratings

Review Summary

1 Stars - 1 reviews
2 Stars - 1 reviews
3 Stars - 2 reviews
4 Stars - 1 reviews
5 Stars - 13 reviews

What do you think about this product?


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5 out of 5 stars

May 20, 2024

So Darn Comfortable

Excellent hiking boot with maximum comfort AND stylish too

user image

Originally reviewed on

5 out of 5 stars

April 28, 2024

Love them!

These boots are so light they feel like sneakers, yet give me a lot of support. I love them.


Originally reviewed on Merrell

1 out of 5 stars

April 6, 2024

Not true to size

These are not true to size. Way too narrow and small. I own a pair of Moabs and a pair of Thermo Rogue 3s that are perfect. I’m a size 9 and bought 9s in those and the fit is great. The Sirens are so small. Unfortunately when I tried put them on to go hiking, I realized how small they were and it was past the return date so I am now stuck with them. I wanted to love them - I absolutely love the color and design!


Originally reviewed on Merrell

5 out of 5 stars

February 4, 2024

We are a Merrell family

I have owned countless pairs of Merrell boots and shoes over the years. No other brand I’ve tried matches their comfort. I’m a huge Merrell fan because they perform and look great while doing it. So of course all 4 of my kids and wife get Merrells as well.


Originally reviewed on Merrell

4 out of 5 stars

January 17, 2024

Slipping and Sliding on any wet surface :(

I would have given 5 stars but the fact that the traction on these are not great on snow, blacktop, wet surfaces. They are warm and have kept me feet dry. They are comfortable. The sliding, because of no grip, is horrible and, in my opinion, a reason I would not buy again. I have buckled my knee several times sliding:(


Originally reviewed on Merrell

5 out of 5 stars

January 15, 2024

Best waterproof hiking shoes !!

Mostly love the color and the comfort level. I’ve taken these hiking on black trails and recently took to 27 inch deep snow and kept feet warm and dry using wool socks. Extremely satisfied!


Originally reviewed on Merrell

5 out of 5 stars

January 10, 2024

Christmas present

They were a present for my daughter in law. She liked them

Cindy york

Originally reviewed on Merrell

3 out of 5 stars

December 26, 2023

Expect chaffing for those with boney ankles

Pretty decent shoes but better for standing than walking. I have boney ankles and there is unbearable chaffing as a result of the tongue fabric overlapping with the main boot fabric. If mid-size boots have caused tightness before these boots will too most likely. Just something to note.


Originally reviewed on Merrell

5 out of 5 stars

November 24, 2023

All day comfort

Very comfortable boot. Siren fits well and feels good when out walking the dog or shopping.

A. Johnston

Originally reviewed on Merrell

5 out of 5 stars

October 17, 2023

Merrell or bust

Comfy from first try-on. True to size. Grippy. Requires a more padded sock heel because the inside is not soft.


Originally reviewed on Merrell