Terrex Speed Ultra
Width options: standard (Men's) / standard (Women's)
Imported family signal
11 of 11 runners said this shoe fit true to size.
Sizing vs. popular reference shoes
| If you wear | Length | Width | Toebox | Reports |
|---|---|---|---|---|
Adidas Adizero Adios Pro 3 (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 Adios Pro 3 (Women's) 11100% 1 of 1 runners landed on 11 (0.5 weighted). | True to size | True to width | Good room | Early reportsEarly Based on 1 reportUS 11-11 |
Adidas Adizero Boston 11 (Women's) 7.5100% 1 of 1 runners landed on 7.5 (0.5 weighted). | True to size | True to width | Good room | Early reportsEarly Based on 1 reportUS 7.5-7.5 |
Adidas Adizero Boston 12 (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 |
Brooks Adrenaline GTS 23 (Women's) 8100% 1 of 1 runners landed on 8 (0.5 weighted). | True to size | Very narrow | Good room | Early reportsEarly Based on 1 reportUS 8-8 |
Hoka Bondi 8 (Women's) 7.5100% 1 of 1 runners landed on 7.5 (0.5 weighted). | True to size | True to width | Good room | Early reportsEarly Based on 1 reportUS 7.5-7.5 |
Mizuno Wave Rebellion Pro 2 (Women's) 8100% 1 of 1 runners landed on 8 (0.5 weighted). | True to size | Very narrow | Good room | Early reportsEarly Based on 1 reportUS 8-8 |
New Balance More 4 (Women's) 7.5100% 1 of 1 runners landed on 7.5 (0.5 weighted). | True to size | True to width | Good room | Early reportsEarly Based on 1 reportUS 7.5-7.5 |
Nike Invincible 4 (Women's) 7.5100% 1 of 1 runners landed on 7.5 (0.5 weighted). | True to size | True to width | Roomy toebox | Early reportsEarly Based on 1 reportUS 7.5-7.5 |
Nike Pegasus 42 (Men'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 |
Saucony Endorphin Speed 4 (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 |
1 of 1 runners landed on 12.5 (0.5 weighted).
1 of 1 runners landed on 11 (0.5 weighted).
1 of 1 runners landed on 7.5 (0.5 weighted).
1 of 1 runners landed on 12.5 (0.5 weighted).
1 of 1 runners landed on 8 (0.5 weighted).
1 of 1 runners landed on 7.5 (0.5 weighted).
1 of 1 runners landed on 8 (0.5 weighted).
1 of 1 runners landed on 7.5 (0.5 weighted).
1 of 1 runners landed on 7.5 (0.5 weighted).
1 of 1 runners landed on 10.5 (0.5 weighted).
1 of 1 runners landed on 12.5 (0.5 weighted).
Community reports
Across the full report set, this many called the shoe true to size.
Reports with extra written context about what runners actually felt.
Signals for hotspots, blisters, or other pain points across the full report set.
| Came from | Bought | Verdict | Runner note | Issues | When |
|---|---|---|---|---|---|
Adidas Adizero Adios Pro 3 (Men's) Size 12.5 | 12.5 | True to sizeTrue to width | sits a bit looser at the heel compared to AP3; feels firmer despite same midsole material | [gender: male/inferred] | [source: /r/RunningShoeGeeks/comments/1bfemv8/adidas_terrex_agravic_speed_ultra_first_run/] | No issues | Mar 2026 |
Adidas Adizero Boston 12 (Men's) Size 12.5 | 12.5 | True to sizeTrue to width | TSU handles road running fine, only slightly different feel from Boston 9 | [ambiguity: Comparison is indirect — poster mentions TSU performed similarly to Boston 9 on road, but this is a secondary comparison within the review] | [gender: male/inferred] | [source: /r/RunningShoeGeeks/comments/1bfemv8/adidas_terrex_agravic_speed_ultra_first_run/] | No issues | Mar 2026 |
Saucony Endorphin Speed 4 (Men's) Size 12.5 | 12.5 | True to sizeTrue to width | ATASU reminds of Saucony Speed 1 in running feel but much more stable and a bit softer | [ambiguity: Comparison is subjective feel-based rather than explicit fit feedback; poster notes similarity in running sensation] | [gender: male/inferred] | [source: /r/RunningShoeGeeks/comments/1bfemv8/adidas_terrex_agravic_speed_ultra_first_run/] | No issues | Mar 2026 |
Adidas Adizero Adios Pro 3 (Women's) Size 12 | 11 | True to sizeTrue to width | Prime X Strung runs large, size down 1 size from TTS | [gender: male/inferred] | [source: /r/RunningShoeGeeks/comments/102fwtf/sizing_comparison_question_for_prime_x_strung/] | No issues | Mar 2026 |
Adidas Adizero Boston 11 (Women's) Size 8 | 7.5 | True to sizeTrue to width | Prime X Strung runs long and roomy, half-size down from Boston 11 | [gender: female/inferred] | [source: /r/RunningShoeGeeks/comments/zqcnc4/new_runner_who_doesnt_need_another_pair_of_shoes/] | No issues | Mar 2026 |
Hoka Bondi 8 (Women's) Size 7.5 EE | 7.5 | True to sizeTrue to width | 7.5 fits well, Prime X Strung runs large | [ambiguity: [gender_uncertain: poster gender could not be reliably determined]] | [gender: unknown/unresolved — flagged for review] | [gender_confidence: uncertain — verify sizing_system] | [source: /r/RunningShoeGeeks/comments/102fwtf/sizing_comparison_question_for_prime_x_strung/] | No issues | Mar 2026 |
New Balance More 4 (Women's) Size 7.5 D | 7.5 | True to sizeTrue to width | 7.5 fits well, Prime X Strung runs large | [ambiguity: [gender_uncertain: poster gender could not be reliably determined]] | [gender: unknown/unresolved — flagged for review] | [gender_confidence: uncertain — verify sizing_system] | [source: /r/RunningShoeGeeks/comments/102fwtf/sizing_comparison_question_for_prime_x_strung/] | No issues | Mar 2026 |
Nike Invincible 4 (Women's) Size 8 D | 7.5 | True to sizeTrue to width | 7.5 fits better than 8, Prime X Strung runs large with roomier toebox than Nike | [ambiguity: [gender_uncertain: poster gender could not be reliably determined]] | [gender: unknown/unresolved — flagged for review] | [gender_confidence: uncertain — verify sizing_system] | [source: /r/RunningShoeGeeks/comments/102fwtf/sizing_comparison_question_for_prime_x_strung/] | No issues | Mar 2026 |
Mizuno Wave Rebellion Pro 2 (Women's) Size unknown | 8 | True to sizeToo narrow | Runs small, narrower width causes medial rubbing and blisters. Typically size 8.5-9 US mens but size 8 for this shoe. | [ambiguity: [gender_uncertain: poster gender could not be reliably determined]] | [gender: unknown/unresolved — flagged for review] | [gender_confidence: uncertain — verify sizing_system] | [source: /r/RunningShoeGeeks/comments/1l0d3dw/adidas_terrex_agravic_speed_ultra/] | Blisters (heel)Ankle rubbing | Mar 2026 |
Nike Pegasus 42 (Men's) Size 10.5 | 10.5 | True to sizeSlightly narrow | Adidas shoes narrower than Nike at same size, but still comfortable enough to run in | [ambiguity: [gender_uncertain: poster gender could not be reliably determined]] | [gender: unknown/unresolved — flagged for review] | [gender_confidence: uncertain — verify sizing_system] | [source: /r/running/comments/8z6g7p/adidas_adizero_tempo_9_women_size_up_half_size/] | No issues | Mar 2026 |
sits a bit looser at the heel compared to AP3; feels firmer despite same midsole material | [gender: male/inferred] | [source: /r/RunningShoeGeeks/comments/1bfemv8/adidas_terrex_agravic_speed_ultra_first_run/]
TSU handles road running fine, only slightly different feel from Boston 9 | [ambiguity: Comparison is indirect — poster mentions TSU performed similarly to Boston 9 on road, but this is a secondary comparison within the review] | [gender: male/inferred] | [source: /r/RunningShoeGeeks/comments/1bfemv8/adidas_terrex_agravic_speed_ultra_first_run/]
ATASU reminds of Saucony Speed 1 in running feel but much more stable and a bit softer | [ambiguity: Comparison is subjective feel-based rather than explicit fit feedback; poster notes similarity in running sensation] | [gender: male/inferred] | [source: /r/RunningShoeGeeks/comments/1bfemv8/adidas_terrex_agravic_speed_ultra_first_run/]
Prime X Strung runs large, size down 1 size from TTS | [gender: male/inferred] | [source: /r/RunningShoeGeeks/comments/102fwtf/sizing_comparison_question_for_prime_x_strung/]
Prime X Strung runs long and roomy, half-size down from Boston 11 | [gender: female/inferred] | [source: /r/RunningShoeGeeks/comments/zqcnc4/new_runner_who_doesnt_need_another_pair_of_shoes/]
7.5 fits well, Prime X Strung runs large | [ambiguity: [gender_uncertain: poster gender could not be reliably determined]] | [gender: unknown/unresolved — flagged for review] | [gender_confidence: uncertain — verify sizing_system] | [source: /r/RunningShoeGeeks/comments/102fwtf/sizing_comparison_question_for_prime_x_strung/]
7.5 fits well, Prime X Strung runs large | [ambiguity: [gender_uncertain: poster gender could not be reliably determined]] | [gender: unknown/unresolved — flagged for review] | [gender_confidence: uncertain — verify sizing_system] | [source: /r/RunningShoeGeeks/comments/102fwtf/sizing_comparison_question_for_prime_x_strung/]
7.5 fits better than 8, Prime X Strung runs large with roomier toebox than Nike | [ambiguity: [gender_uncertain: poster gender could not be reliably determined]] | [gender: unknown/unresolved — flagged for review] | [gender_confidence: uncertain — verify sizing_system] | [source: /r/RunningShoeGeeks/comments/102fwtf/sizing_comparison_question_for_prime_x_strung/]
Runs small, narrower width causes medial rubbing and blisters. Typically size 8.5-9 US mens but size 8 for this shoe. | [ambiguity: [gender_uncertain: poster gender could not be reliably determined]] | [gender: unknown/unresolved — flagged for review] | [gender_confidence: uncertain — verify sizing_system] | [source: /r/RunningShoeGeeks/comments/1l0d3dw/adidas_terrex_agravic_speed_ultra/]
Adidas shoes narrower than Nike at same size, but still comfortable enough to run in | [ambiguity: [gender_uncertain: poster gender could not be reliably determined]] | [gender: unknown/unresolved — flagged for review] | [gender_confidence: uncertain — verify sizing_system] | [source: /r/running/comments/8z6g7p/adidas_adizero_tempo_9_women_size_up_half_size/]
Compare with popular shoes
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