What size should I get in Merrell Siren Edge 3?

Shoe Fit calculates your millimeter shoe cavity to recommend your exact size in the Merrell Siren Edge 3 by comparing against shoes you already own.

MerrellWomen's

Siren Edge 3

Fit verdict, size conversion guide, and millimeter measurements.

Find Your Size

Fit Analysis & Sizing Advice

Order Your Standard Size

This shoe fits consistent with standard sizing charts. You can comfortably order your usual sneaker size.

Runs Small (–8mm)True to SizeRuns Large (+8mm)

Snug / 1 Size UpStandard fitRoomy / 1 Size Down

Width: Standard Width (Medium). Conforms to standard medium width.

Community Fit Consensus

Aggregated feedback from verified shoe owners

4.0

(1,223 ratings)

90% of wearers report this shoe fits True to Size.

Length Distribution

Runs Small7%

True to Size90%

Runs Large3%

Width Distribution

Runs Narrow8%

Standard Width90%

Runs Wide2%

Complete Size Chart

Showing 14 sizes

EU	US (W)	UK	Foot Length	Cavity Length
35	4.5	2	23.3 cm	233 mm
35.5	5	2.5	23.7 cm	237 mm
36	5.5	3	24.0 cm	240 mm
36.5	6	3.5	24.3 cm	243 mm
37	6.5	4	24.7 cm	247 mm
37.5	7	4.5	25.0 cm	250 mm
38	7.5	5	25.3 cm	253 mm
38.5	8	5.5	25.7 cm	257 mm
39	8.5	6	26.0 cm	260 mm
40	9	6.5	26.7 cm	267 mm
40.5	9.5	7	27.0 cm	270 mm
41	10	7.5	27.3 cm	273 mm
41.5	10.5	8	27.7 cm	277 mm
42	11	8.5	28.0 cm	280 mm

Frequently Asked Questions

Does the Merrell Siren Edge 3 run big or small?

Yes, this shoe runs true to size. You should order your typical shoe size. This shoe fits consistent with standard sizing charts. You can comfortably order your usual sneaker size.

How does Shoe Fit determine shoe sizing?

Shoe Fit calculates the real-world interior shoe cavity in millimeters combined with real owner feedback, rather than relying on arbitrary brand charts.

Find Your Exact Size

Already own a shoe that fits well? Shoe Fit cross-references its internal cavity against the Merrell Siren Edge 3 to give you your personalized size.

Instant recommendation

Accounts for width & stretch

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Compare With Your Shoe

Model Details

BrandMerrell

ModelSiren Edge 3

Gender SpecWomen's

Sizes Offered14 sizes

Community Rating4.0 ★ (1223 votes)