Novablast v5
Width options: standard, wide (Men's) / standard, wide (Women's)
Imported family signal
50 of 71 runners said this shoe fit true to size.
Fit Notes
Runs slightly short; size up 0.5. Roomy toebox.
Sizing vs. popular reference shoes
| If you wear | Length | Width | Toebox | Reports |
|---|---|---|---|---|
Adidas Adizero Adios Pro 3 (Women's) 10100% 1 of 1 runners landed on 10 (0.5 weighted). | True to size | Slightly narrow | Good room | Early reportsEarly Based on 1 reportUS 10-10 |
Adidas Adizero Evo SL (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 |
Asics Gel-Kayano 31 (Women's) UK 8100% 1 of 1 runners landed on UK 8 (0.5 weighted). | True to size | True to width | Good room | Early reportsEarly Based on 1 reportUS 8-8 |
Asics Gel-Nimbus 26 (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 |
Asics Gel-Pulse 15 (Men's) 9.5100% 1 of 1 runners landed on 9.5 (0.5 weighted). | True to size | Very wide | Good room | Early reportsEarly Based on 1 reportUS 9.5-9.5 |
Asics GT-2000 12 (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 |
Asics GT-2000 13 (Women's) EU 46.5100% 1 of 1 runners landed on EU 46.5 (0.5 weighted). | True to size | Slightly wide | Roomy toebox | Early reportsEarly Based on 1 reportUS 46.5-46.5 |
Asics Novablast 5 (Women's) 9100% 1 of 1 runners landed on 9 (0.5 weighted). | True to size | True to width | Good room | Early reportsEarly Based on 1 reportUS 9-9 |
Asics Superblast 1 (Men's) US 12.5100% 1 of 1 runners landed on US 12.5 (0.5 weighted). | True to size | True to width | Good room | Early reportsEarly Based on 1 reportUS 12.5-12.5 |
Asics Superblast 1 (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 |
Brooks Ghost 17 (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 |
Brooks Glycerin 20 (Men's) 12100% 1 of 1 runners landed on 12 (0.5 weighted). | True to size | True to width | Good room | Early reportsEarly Based on 1 reportUS 12-12 |
Brooks Glycerin 21 (Men's) 12100% 1 of 1 runners landed on 12 (0.5 weighted). | True to size | True to width | Good room | Early reportsEarly Based on 1 reportUS 12-12 |
Brooks Glycerin 21 (Women's) 9100% 1 of 1 runners landed on 9 (0.5 weighted). | True to size | Very narrow | Cramped toebox | Early reportsEarly Based on 1 reportUS 9-9 |
Hoka Mach 5 (Women's) 11100% 1 of 1 runners landed on 11 (0.5 weighted). | True to size | Very narrow | Good room | Early reportsEarly Based on 1 reportUS 11-11 |
Hoka Mach 6 (Women's) 9100% 1 of 1 runners landed on 9 (0.5 weighted). | True to size | Very narrow | Cramped toebox | Early reportsEarly Based on 1 reportUS 9-9 |
Hoka Rincon 4 (Men's) 9100% 1 of 1 runners landed on 9 (0.5 weighted). | True to size | True to width | Roomy toebox | Early reportsEarly Based on 1 reportUS 9-9 |
New Balance Fresh Foam 860 14 (Women's) US 11100% 1 of 1 runners landed on US 11 (0.5 weighted). | True to size | True to width | Good room | Early reportsEarly Based on 1 reportUS 11-11 |
New Balance Fresh Foam 880 14 (Women's) 9100% 1 of 1 runners landed on 9 (0.5 weighted). | True to size | True to width | Roomy toebox | Early reportsEarly Based on 1 reportUS 9-9 |
New Balance FuelCell Rebel 3 (Women's) 9100% 1 of 1 runners landed on 9 (0.5 weighted). | True to size | True to width | Roomy toebox | Early reportsEarly Based on 1 reportUS 9-9 |
New Balance FuelCell SC Elite 3 (Men's) M13100% 1 of 1 runners landed on M13 (0.5 weighted). | True to size | True to width | Good room | Early reportsEarly Based on 1 reportUS 13-13 |
Nike Alphafly 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 |
Nike Pegasus 42 (Men's) 8100% 1 of 1 runners landed on 8 (0.5 weighted). | True to size | True to width | Good room | Early reportsEarly Based on 1 reportUS 8-8 |
On Cloudmonster 2 (Women's) 9100% 1 of 1 runners landed on 9 (0.5 weighted). | True to size | True to width | Good room | Early reportsEarly Based on 1 reportUS 9-9 |
Saucony Endorphin Speed 4 (Men'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 |
Saucony Endorphin Speed 4 (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 |
Saucony Guide 16 (Women's) 10100% 1 of 1 runners landed on 10 (0.5 weighted). | True to size | Slightly narrow | Good room | Early reportsEarly Based on 1 reportUS 10-10 |
Adidas Ultraboost 24 (Women's) 9100% 1 of 1 runners landed on 9 (0.4 weighted). | Some go half size down | True to width | Roomy toebox | Early reportsEarly Based on 1 reportUS 9-9 |
Asics Metaspeed Sky+ (Men's) 41.5 EU / US 8100% 1 of 1 runners landed on 41.5 EU / US 8 (0.4 weighted). | Consider sizing up 0.5 | True to width | Roomy toebox | Early reportsEarly Based on 1 reportUS 41.58-41.58 |
Hoka Bondi 7 (Women's) 6100% 1 of 1 runners landed on 6 (0.4 weighted). | Consider sizing up 0.5 | Slightly narrow | Cramped toebox | Early reportsEarly Based on 1 reportUS 6-6 |
Hoka Clifton 10 (Women's) 9100% 1 of 1 runners landed on 9 (0.4 weighted). | Some go half size down | Very narrow | Cramped toebox | Early reportsEarly Based on 1 reportUS 9-9 |
Hoka Clifton 8 (Women's) 10.5100% 1 of 1 runners landed on 10.5 (0.4 weighted). | Some go half size down | True to width | Snug toebox | Early reportsEarly Based on 1 reportUS 10.5-10.5 |
Hoka Clifton 9 (Women's) US 8.5100% 1 of 1 runners landed on US 8.5 (0.4 weighted). | Some go half size down | True to width | Good room | Early reportsEarly Based on 1 reportUS 8.5-8.5 |
Hoka Mach 5 (Men's) 10.5100% 1 of 1 runners landed on 10.5 (0.4 weighted). | Some go half size down | Slightly wide | Roomy toebox | Early reportsEarly Based on 1 reportUS 10.5-10.5 |
New Balance FuelCell SuperComp Trainer 3 (Women's) US9100% 1 of 1 runners landed on US9 (0.4 weighted). | Some go half size down | Slightly narrow | Snug toebox | Early reportsEarly Based on 1 reportUS 9-9 |
Puma Deviate Nitro 2 (Men's) 10.5100% 1 of 1 runners landed on 10.5 (0.4 weighted). | Some go half size down | True to width | Roomy toebox | Early reportsEarly Based on 1 reportUS 10.5-10.5 |
Saucony Triumph 22 (Women's) 8.5100% 1 of 1 runners landed on 8.5 (0.4 weighted). | Some go half size down | True to width | Good room | Early reportsEarly Based on 1 reportUS 8.5-8.5 |
Altra Escalante 4 (Men's) 12 USA / 11 UK100% 1 of 1 runners landed on 12 USA / 11 UK (0.4 weighted). | Size down 0.5 | True to width | Very roomy toebox | Early reportsEarly Based on 1 reportUS 1211-1211 |
New Balance Fresh Foam 1080 14 (Women's) 9100% 1 of 1 runners landed on 9 (0.4 weighted). | Size down 0.5 | True to width | Roomy toebox | Early reportsEarly Based on 1 reportUS 9-9 |
Hoka Bondi 8 (Women's) unknown100% 1 of 1 runners landed on unknown (0.4 weighted). | Some go half size down | Slightly wide | Good room | Early reportsEarly Based on 1 report |
Nike Pegasus 40 (Women's) unknown100% 1 of 1 runners landed on unknown (0.4 weighted). | Some go half size down | Slightly wide | Good room | Early reportsEarly Based on 1 report |
Asics Superblast 2 (Women's) 9.550%unknown50% 1 of 2 runners landed on 9.5 (0.9 weighted). | Some go half size down | True to width | Roomy toebox | Early reportsEarly Based on 2 reportsUS 9.5-9.5 |
Asics Metaspeed Sky+ (Women's) 41.5 EU50%unknown50% 1 of 2 runners landed on 41.5 EU (0.8 weighted). | Consider sizing up 0.5 | True to width | Roomy toebox | Early reportsEarly Based on 2 reportsUS 41.5-41.5 |
New Balance FuelCell Rebel 4 (Women's) 7.550%850% 1 of 2 runners landed on 7.5 (0.9 weighted). | True to size | Slightly wide | Roomy toebox | Early reportsEarly Based on 2 reportsUS 7.5-8 |
Saucony Triumph 21 (Men's) 10.550%1150% 1 of 2 runners landed on 10.5 (0.9 weighted). | True to size | Slightly wide | Roomy toebox | Early reportsEarly Based on 2 reportsUS 10.5-11 |
Asics Novablast 4 (Women's) 1050%9.5UK50% 1 of 2 runners landed on 10 (0.9 weighted). | Some go half size down | Slightly narrow | Roomy toebox | Early reportsEarly Based on 2 reportsUS 9.5-10 |
Asics Gel-Nimbus 27 (Men's) 1150%1250% 1 of 2 runners landed on 11 (0.9 weighted). | True to size | True to width | Good room | Early reportsEarly Based on 2 reportsUS 11-12 |
Brooks Glycerin 20 (Women's) 1150%1250% 1 of 2 runners landed on 11 (0.9 weighted). | True to size | True to width | Good room | Early reportsEarly Based on 2 reportsUS 11-12 |
Nike Pegasus 42 (Women's) 850%US950% 1 of 2 runners landed on 8 (0.9 weighted). | True to size | Slightly narrow | Cramped toebox | Early reportsEarly Based on 2 reportsUS 8-9 |
Saucony Triumph 20 (Men's) 1150%1250% 1 of 2 runners landed on 11 (0.9 weighted). | True to size | Slightly wide | Roomy toebox | Early reportsEarly Based on 2 reportsUS 11-12 |
Asics Gel-Nimbus 27 (Women's) 7.550%950% 1 of 2 runners landed on 7.5 (0.9 weighted). | True to size | True to width | Good room | Early reportsEarly Based on 2 reportsUS 7.5-9 |
Nike Pegasus 39 (Women's) 950%10.550% 1 of 2 runners landed on 10.5 (0.9 weighted). | True to size | Slightly wide | Roomy toebox | Early reportsEarly Based on 2 reportsUS 9-10.5 |
Nike Pegasus 40 (Men's) 850%1050% 1 of 2 runners landed on 10 (0.9 weighted). | True to size | True to width | Good room | Early reportsEarly Based on 2 reportsUS 8-10 |
Saucony Triumph 20 (Women's) 950%1250% 1 of 2 runners landed on 12 (0.9 weighted). | True to size | True to width | Roomy toebox | Early reportsEarly Based on 2 reportsUS 9-12 |
Asics Gel-Cumulus 26 (Women's) 850%US 1250% 1 of 2 runners landed on 8 (0.9 weighted). | Some go half size down | True to width | Good room | Early reportsEarly Based on 2 reportsUS 8-12 |
Asics Gel-Nimbus 25 (Women's) 950%1250% 1 of 2 runners landed on 12 (0.8 weighted). | Size down 0.5 | True to width | Good room | Early reportsEarly Based on 2 reportsUS 9-12 |
1 of 1 runners landed on 10 (0.5 weighted).
1 of 1 runners landed on 9 (0.5 weighted).
1 of 1 runners landed on UK 8 (0.5 weighted).
1 of 1 runners landed on 8.5 (0.5 weighted).
1 of 1 runners landed on 9.5 (0.5 weighted).
1 of 1 runners landed on 7.5 (0.5 weighted).
1 of 1 runners landed on EU 46.5 (0.5 weighted).
1 of 1 runners landed on 9 (0.5 weighted).
1 of 1 runners landed on US 12.5 (0.5 weighted).
1 of 1 runners landed on 10.5 (0.5 weighted).
1 of 1 runners landed on 8.5 (0.5 weighted).
1 of 1 runners landed on 12 (0.5 weighted).
1 of 1 runners landed on 12 (0.5 weighted).
1 of 1 runners landed on 9 (0.5 weighted).
1 of 1 runners landed on 11 (0.5 weighted).
1 of 1 runners landed on 9 (0.5 weighted).
1 of 1 runners landed on 9 (0.5 weighted).
1 of 1 runners landed on US 11 (0.5 weighted).
1 of 1 runners landed on 9 (0.5 weighted).
1 of 1 runners landed on 9 (0.5 weighted).
1 of 1 runners landed on M13 (0.5 weighted).
1 of 1 runners landed on 11 (0.5 weighted).
1 of 1 runners landed on 8 (0.5 weighted).
1 of 1 runners landed on 9 (0.5 weighted).
1 of 1 runners landed on 11 (0.5 weighted).
1 of 1 runners landed on 8.5 (0.5 weighted).
1 of 1 runners landed on 10 (0.5 weighted).
1 of 1 runners landed on 9 (0.4 weighted).
1 of 1 runners landed on 41.5 EU / US 8 (0.4 weighted).
1 of 1 runners landed on 6 (0.4 weighted).
1 of 1 runners landed on 9 (0.4 weighted).
1 of 1 runners landed on 10.5 (0.4 weighted).
1 of 1 runners landed on US 8.5 (0.4 weighted).
1 of 1 runners landed on 10.5 (0.4 weighted).
1 of 1 runners landed on US9 (0.4 weighted).
1 of 1 runners landed on 10.5 (0.4 weighted).
1 of 1 runners landed on 8.5 (0.4 weighted).
1 of 1 runners landed on 12 USA / 11 UK (0.4 weighted).
1 of 1 runners landed on 9 (0.4 weighted).
1 of 1 runners landed on unknown (0.4 weighted).
1 of 1 runners landed on unknown (0.4 weighted).
1 of 2 runners landed on 9.5 (0.9 weighted).
1 of 2 runners landed on 41.5 EU (0.8 weighted).
1 of 2 runners landed on 7.5 (0.9 weighted).
1 of 2 runners landed on 10.5 (0.9 weighted).
1 of 2 runners landed on 10 (0.9 weighted).
1 of 2 runners landed on 11 (0.9 weighted).
1 of 2 runners landed on 11 (0.9 weighted).
1 of 2 runners landed on 8 (0.9 weighted).
1 of 2 runners landed on 11 (0.9 weighted).
1 of 2 runners landed on 7.5 (0.9 weighted).
1 of 2 runners landed on 10.5 (0.9 weighted).
1 of 2 runners landed on 10 (0.9 weighted).
1 of 2 runners landed on 12 (0.9 weighted).
1 of 2 runners landed on 8 (0.9 weighted).
1 of 2 runners landed on 12 (0.8 weighted).
Size Guide: Coming from Other Shoes
| If you wear | Try in Asics Novablast 5 | Reports |
|---|---|---|
| Saucony Triumph 20 11 | 11 | 4 runners |
| Nike Pegasus 42 9 | 8 | 3 runners |
Based on community reports. Individual fit may vary.
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 Novablast 4 (Women's) Size 9.5UK | 9.5UK | True to sizeSlightly narrow | NB4 feels firmer and more responsive but fit less comfortable; NB3 has more volume and better lockdown; NB4 less comfortable on slow recovery miles | [gender: male/explicit] | [source: /r/RunningShoeGeeks/comments/1je48t2/asics_novablast_3_heavier_runner_getting_lighter/] | No issues | Mar 2026 |
New Balance FuelCell SC Elite 3 (Men's) Size M13 | M13 | True to sizeTrue to width | fits well | [ambiguity: Poster lists Novablast 3 as a shoe that 'fit me well' but does not explicitly state the size worn in that shoe. Size inferred from context as M13 (poster's stated size for SC Elite v3).] | [gender: male/explicit] | [source: /r/RunningShoeGeeks/comments/1ep4spl/first_run_new_balance_sc_elite_v3/] | No issues | Mar 2026 |
Asics Novablast 4 (Women's) Size 9.5 | 10 | Slightly longSlightly narrow | S4+ is narrower than Boston 12; toes have plenty of room; Boston 12 is actually longer than S4+ at size 10 | [gender: male/explicit] | [source: /r/RunningShoeGeeks/comments/1hkwuan/asics_s4_yogiri_25_mile_first_thoughts/] | No issues | Mar 2026 |
Asics Novablast 5 (Women's) Size 9 | 9 | True to sizeTrue to width | Novablast come up super long, went size 9 in both v2 and v3 | [ambiguity: Commenter mentions Novablast runs long but chose same size across versions; unclear if this is optimal fit or compromise] | [gender: male/inferred] | [source: /r/RunningShoeGeeks/comments/15fbsc1/superblast_sizing_advice/] | No issues | Mar 2026 |
Adidas Adizero Adios Pro 3 (Women's) Size 9.5 | 10 | True to sizeSlightly narrow | S4+ is narrower shoe; sized up 0.5 from Adios Pro 3 | [gender: male/explicit] | [source: /r/RunningShoeGeeks/comments/1hkwuan/asics_s4_yogiri_25_mile_first_thoughts/] | No issues | Mar 2026 |
Saucony Triumph 20 (Men's) Size 11 | 11 | True to sizeSlightly wide | fits very well with wider toe box; NB5 noticeably bouncier but loses bounce after 6mi; Triumph foam firmer and maintains cushion throughout long runs | [gender: male/inferred] | [source: /r/RunningShoeGeeks/comments/1j2d0gf/asics_novablast_5_inital_thoughts_after_30_miles/] | No issues | Mar 2026 |
Saucony Endorphin Speed 4 (Men's) Size 11 | 11 | True to sizeTrue to width | Novablast 3 fits like a glove at same size, but foam is too soft and squishy; feet cramp up and have to work harder for toe-off compared to Endorphin Speed | [gender: male/inferred] | [source: /r/AdvancedRunning/comments/x7htg7/novablast_3_first_run_not_impressed/] | No issues | Mar 2026 |
Saucony Triumph 21 (Men's) Size 11 | 11 | True to sizeSlightly wide | fits very well with wider toe box; NB5 noticeably bouncier but loses bounce after 6mi; Triumph foam firmer and maintains cushion throughout long runs | [gender: male/inferred] | [source: /r/RunningShoeGeeks/comments/1j2d0gf/asics_novablast_5_inital_thoughts_after_30_miles/] | No issues | Mar 2026 |
Hoka Mach 5 (Men's) Size 10.5 | 10.5 | Slightly longSlightly wide | a little bit longer than Mach 5, even more roomy toebox, requires more cinching | [gender: male/inferred] | [source: /r/RunningShoeGeeks/comments/1b77xor/asics_novablast_4_initial_impression_first_run/] | No issues | Mar 2026 |
Asics Metaspeed Sky+ (Men's) Size 42.5 EU / US 9 | 41.5 EU / US 8 | Slightly shortTrue to width | Novablast 5 is one size smaller (41.5 EU vs 42.5 EU); more roomy in toebox than Roadhawk FF | [gender: male/inferred] | [source: /r/RunningShoeGeeks/comments/1jchpvt/comments_on_the_asics_novablast_5_from_a_nb/] | No issues | Mar 2026 |
NB4 feels firmer and more responsive but fit less comfortable; NB3 has more volume and better lockdown; NB4 less comfortable on slow recovery miles | [gender: male/explicit] | [source: /r/RunningShoeGeeks/comments/1je48t2/asics_novablast_3_heavier_runner_getting_lighter/]
fits well | [ambiguity: Poster lists Novablast 3 as a shoe that 'fit me well' but does not explicitly state the size worn in that shoe. Size inferred from context as M13 (poster's stated size for SC Elite v3).] | [gender: male/explicit] | [source: /r/RunningShoeGeeks/comments/1ep4spl/first_run_new_balance_sc_elite_v3/]
S4+ is narrower than Boston 12; toes have plenty of room; Boston 12 is actually longer than S4+ at size 10 | [gender: male/explicit] | [source: /r/RunningShoeGeeks/comments/1hkwuan/asics_s4_yogiri_25_mile_first_thoughts/]
Novablast come up super long, went size 9 in both v2 and v3 | [ambiguity: Commenter mentions Novablast runs long but chose same size across versions; unclear if this is optimal fit or compromise] | [gender: male/inferred] | [source: /r/RunningShoeGeeks/comments/15fbsc1/superblast_sizing_advice/]
S4+ is narrower shoe; sized up 0.5 from Adios Pro 3 | [gender: male/explicit] | [source: /r/RunningShoeGeeks/comments/1hkwuan/asics_s4_yogiri_25_mile_first_thoughts/]
fits very well with wider toe box; NB5 noticeably bouncier but loses bounce after 6mi; Triumph foam firmer and maintains cushion throughout long runs | [gender: male/inferred] | [source: /r/RunningShoeGeeks/comments/1j2d0gf/asics_novablast_5_inital_thoughts_after_30_miles/]
Novablast 3 fits like a glove at same size, but foam is too soft and squishy; feet cramp up and have to work harder for toe-off compared to Endorphin Speed | [gender: male/inferred] | [source: /r/AdvancedRunning/comments/x7htg7/novablast_3_first_run_not_impressed/]
fits very well with wider toe box; NB5 noticeably bouncier but loses bounce after 6mi; Triumph foam firmer and maintains cushion throughout long runs | [gender: male/inferred] | [source: /r/RunningShoeGeeks/comments/1j2d0gf/asics_novablast_5_inital_thoughts_after_30_miles/]
a little bit longer than Mach 5, even more roomy toebox, requires more cinching | [gender: male/inferred] | [source: /r/RunningShoeGeeks/comments/1b77xor/asics_novablast_4_initial_impression_first_run/]
Novablast 5 is one size smaller (41.5 EU vs 42.5 EU); more roomy in toebox than Roadhawk FF | [gender: male/inferred] | [source: /r/RunningShoeGeeks/comments/1jchpvt/comments_on_the_asics_novablast_5_from_a_nb/]
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