Quick Summary
The Merrell Siren 4 GTX Women’s is a hiking shoe in Monument, size 6.5 UK. It combines a GORE-TEX waterproof membrane with a breathable mesh and TPU upper, so the main buying checks are fit, weather protection and underfoot support.
The shoe also includes 100% recycled laces, webbing, breathable mesh lining and footbed cover. A bellows tongue helps keep out debris, while the abrasion-resistant rubber toe cap adds extra front-of-shoe protection.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Brand | Merrell. A recognised outdoor footwear brand. |
| Model | Siren 4 GTX. This is the specific shoe model to check against other Siren versions. |
| Product type | Women’s hiking shoe. |
| Colour | Monument. Useful if you want this exact finish. |
| Size | 6.5 UK. Fit depends on choosing the correct size for your feet. |
| Membrane | GORE-TEX waterproof membrane. |
| Upper | Breathable mesh and TPU upper. |
| Midsole | FloatPro Foam midsole. |
| Outsole | Vibram TC5+ outsole. |
What to Compare Before Buying
- Size: This pair is 6.5 UK, so check it against your usual fit and any size conversion you rely on.
- Weather protection: The shoe uses a GORE-TEX waterproof membrane, so compare that with the conditions you expect to face.
- Underfoot feel: The FloatPro Foam midsole and rock plate are part of the build, so compare them with the support you want underfoot.
- Grip: The Vibram TC5+ outsole is part of the design, so check whether that outsole style suits your usual terrain.
- Front protection: The abrasion-resistant rubber toe cap is useful if toe protection matters to you.
Who This Product May Suit
This shoe may suit buyers looking for a women’s hiking shoe with a waterproof membrane, breathable upper materials and a tread designed for mixed terrain. It is also relevant if you want a Monument colourway and a specific UK size.
Before You Decide
Confirm the 6.5 UK size before choosing a pair. Check that the waterproof membrane, toe cap and outsole style match the conditions and terrain you have in mind. If fit is important, compare the size carefully with your usual footwear choice.






