React Infinity Run v4
Width options: standard, wide (Men's) / standard, wide (Women's)
Not enough evidence yet
3 of 3 runners said this shoe fit true to size.
Sizing vs. popular reference shoes
| If you wear | Length | Width | Toebox | Reports |
|---|---|---|---|---|
Asics Gel-Nimbus 27 (Women's) unknown100% 1 of 1 runners landed on unknown (0.5 weighted). | True to size | Very narrow | Good room | Early reportsEarly Based on 1 report |
Nike Pegasus 39 (Women's) unknown100% 1 of 1 runners landed on unknown (0.5 weighted). | True to size | True to width | Good room | Early reportsEarly Based on 1 report |
Nike Pegasus 42 (Women's) unknown100% 1 of 1 runners landed on unknown (0.5 weighted). | True to size | Very narrow | Good room | Early reportsEarly Based on 1 report |
1 of 1 runners landed on unknown (0.5 weighted).
1 of 1 runners landed on unknown (0.5 weighted).
1 of 1 runners landed on unknown (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 |
|---|---|---|---|---|---|
Asics Gel-Nimbus 27 (Women's) Size 9 | unknown | True to sizeToo narrow | Infinity 4 found to be too narrow for poster's feet | [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/18ko9u0/impossible_to_find_shoes_that_fit_properly/] | No issues | Mar 2026 |
Nike Pegasus 42 (Women's) Size unknown | unknown | True to sizeToo narrow | arch area seems way too narrow and uncomfortable compared to the Epic React | [ambiguity: No specific size mentioned; comparison is qualitative (arch width issue). Commenter states personal experience but no sizing data provided. [gender_uncertain: poster gender could not be reliably determined]] | [gender: unknown/unresolved — flagged for review] | [gender_confidence: uncertain — verify sizing_system] | [source: /r/AdvancedRunning/comments/huqg4q/nike_epic_react_range_what_happened/] | No issues | Mar 2026 |
Nike Pegasus 39 (Women's) Size unknown | unknown | True to sizeTrue to width | Peg 36/37 is fine; Nike uppers don't irritate despite wide feet requiring Hoka wide range | [ambiguity: Commenter has wide feet and compares Peg 36 to Infinity React FN indirectly. No explicit size data. Comparison is about fit comfort rather than sizing. [gender_uncertain: poster gender could not be reliably determined]] | [gender: unknown/unresolved — flagged for review] | [gender_confidence: uncertain — verify sizing_system] | [source: /r/AdvancedRunning/comments/huqg4q/nike_epic_react_range_what_happened/] | No issues | Mar 2026 |
Infinity 4 found to be too narrow for poster's feet | [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/18ko9u0/impossible_to_find_shoes_that_fit_properly/]
arch area seems way too narrow and uncomfortable compared to the Epic React | [ambiguity: No specific size mentioned; comparison is qualitative (arch width issue). Commenter states personal experience but no sizing data provided. [gender_uncertain: poster gender could not be reliably determined]] | [gender: unknown/unresolved — flagged for review] | [gender_confidence: uncertain — verify sizing_system] | [source: /r/AdvancedRunning/comments/huqg4q/nike_epic_react_range_what_happened/]
Peg 36/37 is fine; Nike uppers don't irritate despite wide feet requiring Hoka wide range | [ambiguity: Commenter has wide feet and compares Peg 36 to Infinity React FN indirectly. No explicit size data. Comparison is about fit comfort rather than sizing. [gender_uncertain: poster gender could not be reliably determined]] | [gender: unknown/unresolved — flagged for review] | [gender_confidence: uncertain — verify sizing_system] | [source: /r/AdvancedRunning/comments/huqg4q/nike_epic_react_range_what_happened/]
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