Siren 4 MID GTX Women's Hiking Boot

Size: 6

Sizing guide

Size Conversion Chart

Fit note: Sizing can vary slightly by brand and style. If you’re between sizes, we usually recommend going up half a size.

Wide fit: Wide fit options are available in selected styles.

EU	UK	US (Men)	US (Women)
36	3	—	5
37	4	—	6
38	5	—	7
39	6	7	8
40	6.5	7.5	8.5
41	7	8	9
42	8	9	10
43	9	10	11
44	9.5	10.5	11.5
45	10.5	11.5	12.5
46	11	12	13
47	12	13	14

Need help? Message us and we’ll recommend the best fit based on your foot width and support needs.

Find Your Perfect Fit (It’s Not Just Size)

Most people think they need a bigger size…
but in reality, they need a wider fit.

Understanding Shoe Widths

Width	What It Means	How It Feels
F	Narrow	Snug, slim fit
G	Standard	Comfortable for most
H	Wide	More room across the foot
K	Extra Wide	Maximum space & comfort

👉 Quick tip:
If your shoes feel tight at the sides—but long enough—you likely need a wider fit.

Size guide →

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Merrell Siren 4 Mid GTX Monuement – Women’s Waterproof Hiking Boot

Designed for Women. Built for the Trail. Trusted All-Weather Comfort.

The Merrell Siren 4 Mid GTX is a women’s-specific hiking boot engineered to deliver outstanding comfort, stability, and waterproof protection on every adventure. Designed around female biomechanics, it offers a more precise fit, enhanced arch support, and reliable cushioning—making it ideal for long hikes, uneven terrain, and unpredictable weather.

Equipped with a GORE-TEX® waterproof membrane, the Siren 4 Mid GTX keeps feet dry while remaining breathable, so you stay comfortable in wet, muddy, or changeable conditions. The mid-cut design provides added ankle support and confidence on rocky trails, while the lightweight construction ensures you never feel weighed down.

Underfoot, a cushioned midsole absorbs impact and reduces fatigue, while the high-traction outsole delivers dependable grip on a wide range of surfaces. Whether you’re exploring forest paths, hillwalking, or enjoying weekend adventures, the Siren 4 Mid GTX offers the perfect blend of protection, comfort, and performance—built specifically for women who love the outdoors.

Key Features

✔️ GORE-TEX® Waterproof Membrane – Breathable protection to keep feet dry
✔️ Women’s-Specific Fit – Designed to support female foot shape and alignment
✔️ Mid-Cut Boot Design – Added ankle stability for uneven terrain
✔️ Cushioned Midsole – Absorbs shock and supports long-distance comfort
✔️ High-Traction Outsole – Reliable grip on wet, rocky, and mixed surfaces
✔️ Breathable Upper – Keeps feet cool and comfortable on the move
✔️ Protective Toe & Heel – Shields feet from rocks and trail debris

Ideal For

Women seeking a lightweight, waterproof hiking boot
Day hikes, hillwalking, and mixed-terrain adventures
Wet, muddy, or unpredictable conditions
Walkers who want comfort, stability, and support without bulk

Confidence on Every Trail. Comfort in Every Step.

The Merrell Siren 4 Mid GTX is the perfect hiking boot for women who want dependable waterproof protection, a secure fit, and all-day comfort—wherever the trail leads.

Specialist Fit & Comfort Promise

Every product is selected or fitted to reduce stress on feet, knees, hips and back.

Trusted Quality Only

We only stock products we would confidently recommend to our own patients and families.

Quality You Can Trust

Produced in certified facilities with strict quality control for peace of mind.