ASICS running shoes deliver genuine value across a focused range, with the Gel-Cumulus 28 standing out as the smart all-rounder and the Megablast as the premium choice for speed work. Both are built on decades of Japanese engineering—ASICS consistently prioritises cushioning comfort and durability over trend chasing, which means you're paying for proven performance, not just a logo.
Why ASICS?
ASICS was founded in 1949 in Japan as Onitsuka Co., focusing specifically on running footwear and sports technology. The brand specialises in gel-cushioning systems and responsive midsole compounds designed to absorb impact rather than transfer it to your joints. Unlike many competitors, ASICS maintains its own manufacturing standards and doesn't chase every trend—their shoes stay in rotation for years, which means you're less likely to buy a model only to see it discontinued.
Their core strength is translating biomechanical research into everyday shoes. Each model targets specific running styles: neutral runners, overpronators, and different distance preferences. This specificity means you need to match the shoe to your gait, not just your budget.
Top Picks
Gel-Cumulus 28 — £110
Best for daily training and new runners seeking maximum comfort-per-pound. The Cumulus range is ASICS' bread-and-butter neutral trainer, cushioned enough for long runs but responsive enough for tempo work. At £110, this is the entry point to ASICS quality without compromise. The Gel-Cumulus 28 updates the midsole foam for better energy return compared to earlier versions, and the 12mm heel-to-toe drop makes it accessible for runners transitioning from heavier shoes.
ASICS Megablast Running Shoes — £224.95–£225.00
Best for speed work, tempo runs, and runners wanting a lightweight racing feel. The Megablast is ASICS' answer to ultra-responsive trainers—lighter than the Cumulus at around 250g per shoe, with a snappier midsole foam (FlyteFoam Turbo) that feels closer to racing flats. The 8mm drop is lower, encouraging a forefoot-strike pattern. At roughly double the Cumulus price, this is a specialised tool, not a daily driver. Buy this only if you're doing regular speedwork or racing; for pure volume running, the Cumulus outperforms it.
Quick Comparison
| Product | Price | Best For | Standout Feature | |---------|-------|----------|------------------| | Gel-Cumulus 28 | £110 | Daily training, building base mileage | £110 entry price with full gel cushioning | | Megablast | £225 | Speed sessions, tempo runs, racing | 250g lightweight frame, responsive foam |
What to Look For
- Drop (heel-to-toe height difference): ASICS ranges from 5mm (racing) to 12mm (daily comfort). The Cumulus' 12mm drop suits distance runners; the Megablast's 8mm suits speedwork. Larger drops reduce calf strain on long runs; smaller drops build calf strength.
- Gel vs. FlyteFoam: Gel cushioning (Cumulus) absorbs shock gradually; FlyteFoam (Megablast) returns energy faster. Choose based on whether you prioritise comfort or responsiveness.
- Midsole weight: The Megablast saves ~30g per shoe—meaningful if you're running 5K time trials, irrelevant for base-building. Don't pay for lightness you won't notice.
- Outsole durability: ASICS outsoles typically last 800–1000km before noticeable wear. The Cumulus' reinforced rubber pattern suggests slightly better longevity for high-mileage runners.
The Bottom Line
Buy the Gel-Cumulus 28 at £110 if you're starting running, building weekly mileage, or want a reliable daily trainer that won't fail you. Buy the Megablast at £225 only if you're regularly doing speed work and understand that lighter shoes demand more leg strength. Most runners will never need the Megablast; the Cumulus covers 90% of training scenarios better.
Frequently Asked Questions
Is ASICS good value for money compared to Nike or Adidas?
Yes, ASICS typically offers better value in the £100–£250 range. Their shoes hold their cushioning longer—most ASICS runners report consistent comfort past 600km, whereas some competitors soften noticeably by 500km. You're not paying for brand hype; you're paying for proven cushioning technology and Japanese manufacturing standards. The Gel-Cumulus 28 at £110 undercuts equivalent Nike or Adidas trainers by £20–£40 with comparable durability.
Which ASICS shoe is best for marathon training?
The Gel-Cumulus 28 is the better marathon choice over the Megablast. Marathons reward comfort and cushioning consistency; the Cumulus' 12mm drop and gel-heavy midsole reduce fatigue over 42km. The Megablast's lighter weight becomes irrelevant at marathon pace—most runners slow down in the final 10km anyway, and you'll appreciate the Cumulus' plush feel then. Save the Megablast for half-marathons or 10K racing.
How long do ASICS running shoes last before they need replacing?
Expect 800–1000km of running before noticeable midsole softening, typically 6–12 months depending on weekly mileage. The Gel-Cumulus range consistently reaches 900km; the Megablast may reach only 800km due to lighter foam composition. Signs of replacement: loss of spring when landing, heel slippage, or visible cracking on the midsole. Most runners notice these by month 8–10 with regular training.
Are ASICS shoes suitable for wide feet?
ASICS offers specific wide-fit versions (labelled 2E or 4E) for most models, though they're not always stocked at standard retailers. If your current shoes gap at the heel or press at the midfoot, the standard Cumulus or Megablast may not fit well—check a specialist running retailer that can assess your gait. Many runners with wide feet find ASICS' forefoot room more forgiving than Nike, but fit varies by individual foot shape.
