Short verdict: the adult New Balance 520v8 is a lightweight, straightforward neutral road-running shoe built around EVA cushioning, an engineered-mesh upper and a rubber outsole. The evidence supports calling it a simple running option, but not the old Zone2 claims about ten-mile comfort, several-hundred-mile durability or superiority over named rivals.
This is a researched specification guide, not a wear test. Zone2 has not retained a test log, test size, mileage record or photographs for the previous first-person review, so unsupported performance conclusions have been removed. Adult 520v8 construction is checked against an official New Balance M520V8 product record and a UK retailer’s archived men’s listing.
Zone2 verdict
Consider it for: short, uncomplicated road or treadmill running, walking and general everyday use when the fit is right and the price reflects that it is now an older model.
Think twice for: technical trails, racing, a highly cushioned long-run shoe, a plated speed shoe or heavy lifting where a lower and firmer training shoe is normally easier to stabilise.
Main trade-off: low complexity and a roughly 250g listed weight versus a basic EVA platform with no verified premium foam, rocker, plate or support system. That simplicity can be useful, but it is not proof of comfort for a particular distance.
Verified New Balance 520v8 specifications
| Feature | Source-checked information | What to know |
|---|---|---|
| Model family | Adult M520V8; separate W520V8 and children’s versions also exist | Do not transfer weight, fastening or foam claims between versions. |
| Intended use | Designed as lightweight footwear for running | A simple road-running proposition rather than a specialist race or trail model. |
| Support | Neutral, according to the UK retailer record | No dedicated stability or motion-control system is specified. |
| Listed weight | 250g on the manufacturer record; 252g on the UK retailer record | Reference sizes are not stated; use roughly 250g, not the old article’s 280g. |
| Heel-to-toe drop | 10mm on the UK retailer record | The manufacturer page checked does not publish a drop, so this is retailer-supplied. |
| Midsole | Lightweight EVA foam in the midsole and heel | The adult v8 source checked does not list Fresh Foam or DynaSoft. |
| Upper | Engineered mesh with no-sew overlays | Designed for a smooth, lightweight fit; breathability was not measured by Zone2. |
| Outsole | Rubber road outsole | No trail lugs or wet-grip standard is published in the sources checked. |
| Fastening | Adjustable conventional laces | Adult lace-up construction differs from children’s bungee-and-strap versions. |
| Men’s widths | D is standard and 2E is wide in the manufacturer size guide; availability varies | Check the exact style code because not every colour is stocked in every width. |
The official New Balance M520V8 record lists 250g, lightweight EVA cushioning, no-sew overlays and the men’s width mapping. The archived GO Outdoors UK listing adds the 10mm drop, engineered-mesh upper, rubber outsole, neutral classification and 252g figure. Neither page names the sample size used for weight.
Is the 520v8 Fresh Foam or DynaSoft?
The adult M520V8 sources checked specify lightweight EVA foam. They do not name Fresh Foam or DynaSoft. Search results and retailer titles sometimes add “FF” to the model name, but that abbreviation is not enough to override an exact product specification.
Confusion is understandable because the family is not uniform. New Balance’s children’s 520v8 Bungee Lace uses a DynaSoft midsole, soft ground-contact foam and a bungee-and-strap fastening. Those details belong to the children’s model, not the adult lace-up shoe reviewed here.
The newer 520 v9 also changes the story. An official New Balance 520 v9 product record explicitly names a Fresh Foam midsole. Do not retroactively assign that foam to the v8 because the successor shares the 520 name.
Weight: why 250g and 252g both appear
The official manufacturer record lists 250g, while the UK retailer record lists 252g. A two-gram difference can arise from rounding, a different style, a different reference size or normal manufacturing variation. Neither source identifies the sample size, so presenting either number as universal would be misleading.
The useful conclusion is that the men’s adult model is listed at roughly 250g. That corrects the old Zone2 claim of “around 280g”. It also avoids the false precision of assuming every size and width weighs the same.
Weight alone cannot predict ride quality. Foam density, outsole coverage, flex, fit and geometry all affect how a shoe feels once moving.
Cushioning and ride
New Balance describes lightweight EVA cushioning in the midsole and heel. EVA is a broad material category, not a single ride characteristic: formulation and geometry can produce different levels of softness, resilience and durability.
Zone2 has not measured compression, impact force, energy return or comfort over distance in the 520v8. The previous page said the shoe was comfortable to ten miles, became flat beyond that point and supported 20 to 30 miles a week. Those precise boundaries were not supported by a recorded protocol and have been removed.
Use the first runs as a progressive fit test. Start shorter than your planned long run, note any pressure or discomfort during and after the session, and increase only when the shoe remains comfortable. A runner’s body mass, pace, gait, surface and recent training all affect the experience; a model name cannot set a safe distance.
Fit and sizing
The no-sew overlays are intended to create a sleek fit and feel, while adjustable laces allow local tension changes. That does not prove the old article’s universal “true to size” and narrow-midfoot claims.
For the men’s reference checked, New Balance maps D as standard and 2E as wide. Other markets and colour codes can offer different width selections. Women’s W520V8 listings also exist in standard B and wide D, but stock depends on the seller and exact style.
Measure both feet and use the larger measurement. Try the shoe with your normal running socks, then check:
- enough toe clearance without the foot sliding forward;
- a secure heel without aggressive lace pressure;
- no pinching at the widest part of the forefoot;
- no pressure over the instep once the foot warms up;
- a return option if buying discontinued stock online.
If the standard width is too tight, a wide version is preferable to automatically adding length. A longer shoe can create heel movement while leaving the width mismatch unresolved.
Upper and breathability
The adult shoe uses engineered mesh, synthetic/textile material and no-sew overlays. That construction is intended to keep the upper lightweight and smooth. The manufacturer’s broad lightweight proposition is supported; a quantified breathability claim is not.
Zone2 has not run a smoke, airflow or temperature comparison, so the guide does not rank the 520v8 against premium mesh uppers. Sock choice, weather and pace can change internal heat and moisture as much as a casual inspection of the fabric.
No waterproof membrane is specified. Expect rain and standing water to enter rather than treating the upper as weatherproof. The upside is that a non-membrane upper can be more appropriate in mild conditions, although drying time still depends on the lining, insole and environment.
Outsole, grip and durability
The UK retailer record lists a rubber outsole intended for road use. Rubber coverage can help protect exposed midsole foam and provide surface contact, but the sources do not publish rubber compound, lug depth or a wet-slip certification.
The old article claimed solid grip on wet pavements, no trail grip at all and several hundred miles with well-defined tread. None of those statements had retained evidence. The defensible position is narrower: this is a road-oriented outsole, not a technical trail pattern, and traction must still be judged on the actual surface.
Wet paint, metal covers, leaves, ice and polished stone can be slippery in any running shoe. Slow down when the consequence of a slip is high. For mud, steep loose ground or technical trails, use a dedicated trail model with terrain-appropriate geometry.
Durability cannot be guaranteed by price or visible rubber alone. Record the purchase date, inspect high-wear areas and replace or rotate the shoe if the outsole, upper or cushioning changes enough to affect comfort or control.
Is it suitable for beginners?
The uncomplicated neutral construction and lightweight specification make the 520v8 easy to understand. That can suit a beginner whose foot shape and running needs match the shoe. It does not make it universally correct for new runners.
A beginner does not automatically need maximum cushioning or a stability shoe, but comfort and fit should be established before adding volume. If pain changes your stride or persists, stop and seek qualified advice rather than expecting footwear alone to diagnose or solve the issue.
The 520v8 is now an older model, so compare its price with current alternatives and the seller’s returns policy. Cheap old stock is poor value when the size is wrong, the storage history is uncertain or the foam has visibly deteriorated.
Can you use it for the gym or walking?
For treadmill running, light circuits and ordinary walking, a comfortable pair can be practical. The breathable upper, laces and EVA cushioning support those general uses at a specification level.
For heavy squats, deadlifts or movements where a low, firm and laterally secure base matters, a cushioned road shoe is not the most direct tool. Change footwear to match the session rather than assuming one pair is ideal for every activity.
Walking comfort still requires personal fit. The review does not claim all-day comfort because no timed walking test was retained.
What it is good for—and what remains unproven
| Use | Evidence-based assessment |
|---|---|
| Road running | Yes, this is the stated purpose; comfortable distance and pace remain individual. |
| Treadmill | Plausible when fit and cushioning feel comfortable; no Zone2 treadmill test was retained. |
| Walking | Plausible everyday use; no universal all-day comfort claim. |
| Speed sessions | Roughly 250g is not inherently heavy, but no responsiveness or pace comparison was performed. |
| Long runs | No evidence-backed ten-mile ceiling or recommendation; progress based on comfort and training needs. |
| Technical trails | No; the road outsole is not specified for mud, rock or fell terrain. |
| Heavy lifting | A flatter, firmer training shoe is usually the more direct choice. |
| Wet weather | Not waterproof; rubber outsole does not guarantee wet-surface grip. |
How it compares with other budget shoes
The previous review said the 520v8 beat the Adidas Duramo on cushioning, matched the ASICS Patriot on durability and fit more securely than the Nike Revolution. Zone2 did not retain a controlled side-by-side test, so those rankings have been removed.
Compare budget shoes by exact version, width availability, current price, returns policy and intended use. Foam names alone do not establish comfort. Our refreshed ASICS Patriot 13 review applies the same evidence rules, while the shoe finder helps narrow current models by terrain and purpose.
Price and availability in the UK
The GO Outdoors record checked is out of stock, and Zone2 could not verify a current adult 520v8 price from New Balance UK. The old “£55 to £65” range is therefore not presented as a current price.
When buying remaining stock, confirm the adult model code, gender/width code, condition and returns terms. Do not pay a premium merely because a colour is scarce. Zone2 has no paid placement or affiliate link in this guide.
Frequently asked questions
Is the New Balance 520v8 a running shoe?
Yes. The adult M520V8 manufacturer record says it is designed so the wearer can get outside and run, while the UK retailer classifies it as a neutral road-running shoe.
How much does the New Balance 520v8 weigh?
The manufacturer record lists 250g and the UK retailer record lists 252g. Neither gives a reference size, so “roughly 250g” is the safest comparison.
What is the drop?
The UK retailer record lists a 10mm heel-to-toe drop. The manufacturer page checked does not publish that figure.
Does the adult 520v8 use Fresh Foam?
The adult v8 sources checked specify lightweight EVA, not Fresh Foam. The newer 520 v9 product record explicitly uses Fresh Foam, which should not be transferred back to the v8.
Does the 520v8 use DynaSoft?
The children’s 520v8 Bungee Lace does, but the adult M520V8 source checked specifies EVA cushioning. Always match the claim to the exact version.
Is the 520v8 good for ten-mile runs?
Zone2 has no retained evidence for a ten-mile threshold. Build distance progressively and judge the actual pair by fit and comfort rather than a universal number.