Adizero Boston v11
Width options: standard (Men's) / standard (Women's)
Imported family signal
28 of 37 runners said this shoe fit true to size.
Fit Notes
Runs true to size. Narrow fit — wide feet size up.
Sizing vs. popular reference shoes
| If you wear | Length | Width | Toebox | Reports |
|---|---|---|---|---|
Adidas Adizero Adios Pro 3 (Men's) 10.5100% 1 of 1 runners landed on 10.5 (0.5 weighted). | True to size | True to width | Good room | Early reportsEarly Based on 1 reportUS 10.5-10.5 |
Adidas Adizero Adios Pro 3 (Women's) 8.0100% 1 of 1 runners landed on 8.0 (0.5 weighted). | True to size | True to width | Good room | Early reportsEarly Based on 1 reportUS 8-8 |
Adidas Adizero Boston 12 (Men's) US M 11.5100% 1 of 1 runners landed on US M 11.5 (0.5 weighted). | True to size | True to width | Roomy toebox | Early reportsEarly Based on 1 reportUS 11.5-11.5 |
Adidas Adizero Evo SL (Men's) 10.5100% 1 of 1 runners landed on 10.5 (0.5 weighted). | True to size | Slightly narrow | Snug toebox | Early reportsEarly Based on 1 reportUS 10.5-10.5 |
Adidas Adizero Evo SL (Women's) US 8.5100% 1 of 1 runners landed on US 8.5 (0.5 weighted). | True to size | Slightly narrow | Good room | Early reportsEarly Based on 1 reportUS 8.5-8.5 |
Adidas Adizero SL 2 (Men's) 12.5100% 1 of 1 runners landed on 12.5 (0.5 weighted). | True to size | True to width | Good room | Early reportsEarly Based on 1 reportUS 12.5-12.5 |
Adidas Adizero Takumi Sen 8 (Men's) US8/UK7.5/EU41 1/3100% 1 of 1 runners landed on US8/UK7.5/EU41 1/3 (0.5 weighted). | True to size | True to width | Good room | Early reportsEarly Based on 1 reportUS 87.54113-87.54113 |
Asics GT-2000 13 (Women's) 9100% 1 of 1 runners landed on 9 (0.5 weighted). | True to size | Slightly narrow | Good room | Early reportsEarly Based on 1 reportUS 9-9 |
Asics Superblast 1 (Women's) US 8.5100% 1 of 1 runners landed on US 8.5 (0.5 weighted). | True to size | True to width | Good room | Early reportsEarly Based on 1 reportUS 8.5-8.5 |
Asics Superblast 2 (Men's) 10.5100% 1 of 1 runners landed on 10.5 (0.5 weighted). | True to size | True to width | Good room | Early reportsEarly Based on 1 reportUS 10.5-10.5 |
Asics Superblast 2 (Women's) US 8.5100% 1 of 1 runners landed on US 8.5 (0.5 weighted). | True to size | True to width | Good room | Early reportsEarly Based on 1 reportUS 8.5-8.5 |
Brooks Adrenaline GTS 24 (Women's) 9100% 1 of 1 runners landed on 9 (0.5 weighted). | True to size | Slightly wide | Good room | Early reportsEarly Based on 1 reportUS 9-9 |
Hoka Mach 6 (Men's) 10.5100% 1 of 1 runners landed on 10.5 (0.5 weighted). | True to size | True to width | Good room | Early reportsEarly Based on 1 reportUS 10.5-10.5 |
New Balance Fresh Foam 1080 13 (Men's) 10.5100% 1 of 1 runners landed on 10.5 (0.5 weighted). | True to size | True to width | Good room | Early reportsEarly Based on 1 reportUS 10.5-10.5 |
New Balance Fresh Foam 1080 13 (Women's) 10.5100% 1 of 1 runners landed on 10.5 (0.5 weighted). | True to size | Slightly narrow | Good room | Early reportsEarly Based on 1 reportUS 10.5-10.5 |
New Balance Fresh Foam 860 13 (Women's) 10.5100% 1 of 1 runners landed on 10.5 (0.5 weighted). | True to size | True to width | Good room | Early reportsEarly Based on 1 reportUS 10.5-10.5 |
New Balance FuelCell Rebel 3 (Women's) 11.5100% 1 of 1 runners landed on 11.5 (0.5 weighted). | True to size | True to width | Good room | Early reportsEarly Based on 1 reportUS 11.5-11.5 |
Nike Alphafly 3 (Men's) 10.5100% 1 of 1 runners landed on 10.5 (0.5 weighted). | True to size | True to width | Good room | Early reportsEarly Based on 1 reportUS 10.5-10.5 |
Nike Alphafly 3 (Women's) US 8.5100% 1 of 1 runners landed on US 8.5 (0.5 weighted). | True to size | True to width | Good room | Early reportsEarly Based on 1 reportUS 8.5-8.5 |
Nike Pegasus 41 (Men's) 10US100% 1 of 1 runners landed on 10US (0.5 weighted). | True to size | Slightly wide | Roomy toebox | Early reportsEarly Based on 1 reportUS 10-10 |
Nike Pegasus 42 (Women's) 8.5100% 1 of 1 runners landed on 8.5 (0.5 weighted). | True to size | True to width | Good room | Early reportsEarly Based on 1 reportUS 8.5-8.5 |
Nike Vaporfly 2 (Men's) 10.5100% 1 of 1 runners landed on 10.5 (0.5 weighted). | True to size | True to width | Good room | Early reportsEarly Based on 1 reportUS 10.5-10.5 |
Puma Deviate Nitro 2 (Men's) 10.5100% 1 of 1 runners landed on 10.5 (0.5 weighted). | True to size | True to width | Good room | Early reportsEarly Based on 1 reportUS 10.5-10.5 |
Puma Fast-R 2 (Men's) 10.5100% 1 of 1 runners landed on 10.5 (0.5 weighted). | True to size | True to width | Good room | Early reportsEarly Based on 1 reportUS 10.5-10.5 |
Saucony Endorphin Speed 2 (Women's) 10100% 1 of 1 runners landed on 10 (0.5 weighted). | True to size | True to width | Good room | Early reportsEarly Based on 1 reportUS 10-10 |
Saucony Endorphin Speed 3 (Men's) 10.5100% 1 of 1 runners landed on 10.5 (0.5 weighted). | True to size | True to width | Good room | Early reportsEarly Based on 1 reportUS 10.5-10.5 |
Saucony Kinvara 14 (Women's) US 9100% 1 of 1 runners landed on US 9 (0.5 weighted). | True to size | Slightly narrow | Snug toebox | Early reportsEarly Based on 1 reportUS 9-9 |
Saucony Triumph 20 (Women's) 11.5100% 1 of 1 runners landed on 11.5 (0.5 weighted). | True to size | Slightly wide | Good room | Early reportsEarly Based on 1 reportUS 11.5-11.5 |
Adidas Adizero SL 2 (Women's) 9.5100% 1 of 1 runners landed on 9.5 (0.4 weighted). | Consider sizing up 0.5 | True to width | Good room | Early reportsEarly Based on 1 reportUS 9.5-9.5 |
Asics Gel-Cumulus 26 (Women's) 11100% 1 of 1 runners landed on 11 (0.4 weighted). | Some go half size down | True to width | Good room | Early reportsEarly Based on 1 reportUS 11-11 |
Nike Vaporfly 2 (Women's) 12100% 1 of 1 runners landed on 12 (0.4 weighted). | Some go half size down | True to width | Good room | Early reportsEarly Based on 1 reportUS 12-12 |
Saucony Endorphin Pro 2 (Men's) 12100% 1 of 1 runners landed on 12 (0.4 weighted). | Some go half size down | Slightly wide | Good room | Early reportsEarly Based on 1 reportUS 12-12 |
Saucony Endorphin Speed 4 (Men's) 12100% 1 of 1 runners landed on 12 (0.4 weighted). | Some go half size down | Slightly wide | Good room | Early reportsEarly Based on 1 reportUS 12-12 |
Saucony Endorphin Speed 4 (Women's) 8.5100% 1 of 1 runners landed on 8.5 (0.4 weighted). | Consider sizing up 0.5 | True to width | Good room | Early reportsEarly Based on 1 reportUS 8.5-8.5 |
Adidas Adizero Takumi Sen 8 (Women's) 9100% 1 of 1 runners landed on 9 (0.4 weighted). | Size down 0.5 | True to width | Good room | Early reportsEarly Based on 1 reportUS 9-9 |
Saucony Endorphin Speed 3 (Women's) 5.5/22.5cm100% 1 of 1 runners landed on 5.5/22.5cm (0.4 weighted). | Size down 0.5 | True to width | Good room | Early reportsEarly Based on 1 reportUS 5.522-5.522 |
Adidas Adizero Takumi Sen 9 (Women's) unknown100% 1 of 1 runners landed on unknown (0.4 weighted). | Size down 0.5 | True to width | Good room | Early reportsEarly Based on 1 report |
1 of 1 runners landed on 10.5 (0.5 weighted).
1 of 1 runners landed on 8.0 (0.5 weighted).
1 of 1 runners landed on US M 11.5 (0.5 weighted).
1 of 1 runners landed on 10.5 (0.5 weighted).
1 of 1 runners landed on US 8.5 (0.5 weighted).
1 of 1 runners landed on 12.5 (0.5 weighted).
1 of 1 runners landed on US8/UK7.5/EU41 1/3 (0.5 weighted).
1 of 1 runners landed on 9 (0.5 weighted).
1 of 1 runners landed on US 8.5 (0.5 weighted).
1 of 1 runners landed on 10.5 (0.5 weighted).
1 of 1 runners landed on US 8.5 (0.5 weighted).
1 of 1 runners landed on 9 (0.5 weighted).
1 of 1 runners landed on 10.5 (0.5 weighted).
1 of 1 runners landed on 10.5 (0.5 weighted).
1 of 1 runners landed on 10.5 (0.5 weighted).
1 of 1 runners landed on 10.5 (0.5 weighted).
1 of 1 runners landed on 11.5 (0.5 weighted).
1 of 1 runners landed on 10.5 (0.5 weighted).
1 of 1 runners landed on US 8.5 (0.5 weighted).
1 of 1 runners landed on 10US (0.5 weighted).
1 of 1 runners landed on 8.5 (0.5 weighted).
1 of 1 runners landed on 10.5 (0.5 weighted).
1 of 1 runners landed on 10.5 (0.5 weighted).
1 of 1 runners landed on 10.5 (0.5 weighted).
1 of 1 runners landed on 10 (0.5 weighted).
1 of 1 runners landed on 10.5 (0.5 weighted).
1 of 1 runners landed on US 9 (0.5 weighted).
1 of 1 runners landed on 11.5 (0.5 weighted).
1 of 1 runners landed on 9.5 (0.4 weighted).
1 of 1 runners landed on 11 (0.4 weighted).
1 of 1 runners landed on 12 (0.4 weighted).
1 of 1 runners landed on 12 (0.4 weighted).
1 of 1 runners landed on 12 (0.4 weighted).
1 of 1 runners landed on 8.5 (0.4 weighted).
1 of 1 runners landed on 9 (0.4 weighted).
1 of 1 runners landed on 5.5/22.5cm (0.4 weighted).
1 of 1 runners landed on unknown (0.4 weighted).
Your size, to start
Start with your usual size unless strong runner evidence says otherwise. We don't yet have enough validated reports to confidently recommend a length-size change for the Adidas Adizero Boston 11 (Men's).
Own the Adidas Adizero Boston 11 (Men's)? A 20-second fit report helps other runners.
Add my fit reportCommunity reports
Across the full report set, this many called the shoe true to size.
Reports linked to a public source you can open and verify.
Signals for hotspots, blisters, or other pain points across the full report set.
Runner notes are AI-extracted sizing summaries from public running-shoe discussions. They are not quotes.
| Came from | Bought | Verdict | Runner note | Issues | When |
|---|---|---|---|---|---|
Saucony Endorphin Pro 2 (Men's) Size 12 | 12 | Slightly longSlightly wide | Reported fit vs Saucony Endorphin Pro 2 (Men's) — slightly wide. | No issues | Mar 2026 |
Saucony Endorphin Speed 4 (Men's) Size 12 | 12 | Slightly longSlightly wide | Reported fit vs Saucony Endorphin Speed 4 (Men's) — slightly wide. | No issues | Mar 2026 |
Adidas Adizero Boston 12 (Men's) Size US M 12 | US M 11.5 | True to sizeTrue to width | Reported fit vs Adidas Adizero Boston 12 (Men's) — true to length, true to width, roomy toebox. | No issues | Mar 2026 |
Adidas Adizero SL 2 (Men's) Size 13 | 12.5 | True to sizeTrue to width | Reported fit vs Adidas Adizero SL 2 (Men's) — true to length, true to width. | No issues | Mar 2026 |
Nike Alphafly 3 (Men's) Size 11 | 10.5 | True to sizeTrue to width | Reported fit vs Nike Alphafly 3 (Men's) — true to length, true to width. | No issues | Mar 2026 |
Nike Vaporfly 2 (Men's) Size 11 | 10.5 | True to sizeTrue to width | Reported fit vs Nike Vaporfly 2 (Men's) — true to length, true to width. | No issues | Mar 2026 |
New Balance Fresh Foam 1080 13 (Men's) Size 10.5 | 10.5 | True to sizeTrue to width | Reported fit vs New Balance Fresh Foam 1080 13 (Men's) — true to length, true to width. | No issues | Mar 2026 |
Hoka Mach 6 (Men's) Size 10.5 | 10.5 | True to sizeTrue to width | Reported fit vs Hoka Mach 6 (Men's) — true to length, true to width. | No issues | Mar 2026 |
Adidas Adizero Adios Pro 3 (Men's) Size 10.5 | 10.5 | True to sizeTrue to width | Reported fit vs Adidas Adizero Adios Pro 3 (Men's) — true to length, true to width. | No issues | Mar 2026 |
Adidas Adizero Evo SL (Men's) Size 10.5 | 10.5 | True to sizeSlightly narrow | Reported fit vs Adidas Adizero Evo SL (Men's) — true to length, slightly narrow, snug toebox. | No issues | Mar 2026 |
Reported fit vs Saucony Endorphin Pro 2 (Men's) — slightly wide.
Reported fit vs Saucony Endorphin Speed 4 (Men's) — slightly wide.
Reported fit vs Adidas Adizero Boston 12 (Men's) — true to length, true to width, roomy toebox.
Reported fit vs Adidas Adizero SL 2 (Men's) — true to length, true to width.
Reported fit vs Nike Alphafly 3 (Men's) — true to length, true to width.
Reported fit vs Nike Vaporfly 2 (Men's) — true to length, true to width.
Reported fit vs New Balance Fresh Foam 1080 13 (Men's) — true to length, true to width.
Reported fit vs Hoka Mach 6 (Men's) — true to length, true to width.
Reported fit vs Adidas Adizero Adios Pro 3 (Men's) — true to length, true to width.
Reported fit vs Adidas Adizero Evo SL (Men's) — true to length, slightly narrow, snug toebox.
Compare with popular shoes
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