Short answer
The Asics GEL-Cumulus 27 enters the daily trainer market as a highly reliable option delivering a grounded, stable experience. It fits strictly true to size (TTS) in length, but features a snug fit across the midfoot and a slightly tapered toe box that ensures maximum lockdown during lateral movements.
Runs true to size
Cross-sizing: what size to buy
Find a shoe you already own and read across to the Asics Gel-Cumulus 27 size to buy.
| Reference Shoe | US | EU | ||
|---|---|---|---|---|
| Your usual | Buy | Your usual | Buy | |
| Nike Pegasus 41 | 10 | 10 (Standard) or 10 (2E Wide) | 44 | 44 (Standard) or 44 (2E Wide) |
| Asics Novablast 5 | 10 | 10 | 44 | 44 |
| Asics GEL-Nimbus 27 | 10 | 10 | 44 | 44 |
| Brooks Ghost 16 / 17 | 10 | 10 | 44 | 44 |
-
Nike Pegasus 41
Your usual Buy US 10 10 (Standard) or 10 (2E Wide) EU 44 44 (Standard) or 44 (2E Wide) -
Asics Novablast 5
Your usual Buy US 10 10 EU 44 44 -
Asics GEL-Nimbus 27
Your usual Buy US 10 10 EU 44 44 -
Brooks Ghost 16 / 17
Your usual Buy US 10 10 EU 44 44
Fit Notes
- Nike Pegasus 41
- Both models fit true to size in length. The Pegasus 41 features a roomier standard midfoot. Borderline-wide runners who fit comfortably in standard Nike shoes may find the standard Cumulus 27 toe box too narrow. Instead of sizing up in length—which would disrupt the technical alignment with the underfoot cushioning—runners needing extra width should maintain their true length and select the dedicated 2E Wide version.
- Asics Novablast 5
- Both models are true to size in length. The Novablast 5 features a higher stack, bouncy FF Blast+ Max midsole that delivers an energetic, springy ride. By comparison, the Cumulus 27 is firmer, significantly more stable underfoot, and utilizes a thicker upper that provides a more structured and secure midfoot lockdown.
- Asics GEL-Nimbus 27
- Lengthwise, both shoes run true to size. The premium Nimbus 27 represents a max-cushion option with a much higher stack height and a wider, more accommodating toe box. The Cumulus 27 operates as a lighter, firmer daily trainer that provides a much stronger, more traditional connection to the ground.
- Brooks Ghost 16 / 17
- Both models are highly consistent in true-to-size length. The Brooks Ghost line offers slightly more vertical volume in the toe box. The Cumulus 27 features a lower heel-to-toe drop (8mm vs 10-12mm on the Ghost) and fits tighter through the midfoot for enhanced security and lockdown.
Sizing FAQ
Does the Asics GEL-Cumulus 27 run true to size?
Yes, the Asics GEL-Cumulus 27 fits true to size in terms of length for both men's and women's models. Runners should purchase their typical running shoe size, which provides the industry-standard thumb's width of clearance at the toes. Sizing up in length is not recommended as it shifts the foot's alignment away from the PureGEL heel insert and engineered flex grooves, disrupting the natural gait cycle.
Is the Asics GEL-Cumulus 27 good for wide feet?
The standard version has a moderately snug midfoot and a slightly tapered toe box, which can feel cramped for wide foot profiles due to the dense, non-stretching jacquard mesh upper. However, the model is highly wide-foot friendly because Asics manufactures dedicated wide sizes. Wide-foot runners should select the 2E (Wide) or 4E (Extra-Wide) versions for men, or the D (Wide) version for women to achieve a non-constrictive fit.
How is the arch support on the Asics GEL-Cumulus 27?
The underfoot support is characterized as stable neutral, offering moderate, non-intrusive arch support that comfortably accommodates runners with neutral mechanics or mild underpronation. Rather than relying on aggressive medial posts or dual-density foam inserts, its stability is derived from a wide, planted midsole footprint that resists lateral collapse, paired with a stable FlyteFoam Blast+ midsole.
Specs & Sizing
| Weight | 265 g |
|---|---|
| Retail price | $140 |
| Price on Amazon | $139.95 |
| Release year | 2025 |
| Upper | Lightweight and breathable engineered jacquard mesh with a premium padded gusseted tongue and a new heel pull tab. At least 75% of the upper is made from recycled content. |
| Midsole | Features a full-length FF BLAST PLUS™ foam and a strategically embedded PureGEL™ insert under the heel. Has an 8 mm heel-to-toe drop and includes an OrthoLite X-30 sockliner. |
| Outsole | FLUIDRIDE™ outsole, a rubberized EVA foam blend, with AHARPLUS™ rubber placed in high-wear areas for enhanced durability. |
| Technologies | FF BLAST PLUS™, PureGEL™, FLUIDRIDE™ outsole, AHARPLUS™ rubber, OrthoLite X-30 sockliner |
| Fit & sizing | The shoe is consistently reported to fit true to size for most runners. |