Walk into any office furniture showroom in Australia and you'll immediately notice two dominant material categories: chairs with woven mesh backs and seats, and chairs with foam cushions covered in fabric or leather. Each approach has passionate advocates, and each offers genuine advantages. But for Australians—particularly those working through our notoriously warm summers—the choice has special considerations that don't apply in cooler climates. This guide breaks down the practical differences to help you decide which material suits your needs.
Understanding the Materials
Before comparing performance, let's clarify what we're actually discussing when we talk about mesh and foam in office chairs.
Mesh Construction
Mesh chairs use a woven fabric stretched over a frame, either for the backrest alone or for both back and seat. The material is typically a technical textile—often a knit or woven polymer blend designed specifically for seating applications. Premium mesh materials (like Herman Miller's Pellicle or Steelcase's Cogent Connect) are engineered for specific properties: tensioned support, durability, breathability, and resistance to stretching or sagging.
The "suspension" nature of mesh means it conforms to your body under tension rather than compressing like cushioning. Different mesh densities and weave patterns create different support characteristics—some feel firmer, others more giving.
Foam Construction
Traditional cushioned chairs use moulded foam—typically polyurethane—covered in fabric, vinyl, or leather. Foam quality varies significantly: high-density foam (50+ kg/m³) maintains its shape and support much longer than low-density foam. Premium chairs often use multiple foam densities layered for comfort and durability, or speciality foams like memory foam or cold-cure foam.
Foam provides cushioning by compressing under weight and slowly recovering when pressure is removed. The "plush" sensation many people associate with comfort comes from foam compression.
Many modern ergonomic chairs combine both materials—mesh back for breathability and a foam seat for cushioned comfort. This hybrid approach offers some advantages of each, though with added manufacturing complexity and cost.
Breathability: The Australian Factor
In a country where summer temperatures routinely exceed 35°C and many home offices lack air conditioning, breathability isn't a luxury—it's a significant comfort factor.
Mesh Advantages
Mesh's primary benefit is airflow. Air moves freely through the weave, carrying heat and moisture away from your body. Sitting on mesh in warm conditions feels noticeably cooler than sitting on foam. You don't accumulate the same heat and sweat that builds up when your back is pressed against a solid surface.
This ventilation advantage is particularly pronounced for backs, where heat buildup is common. A mesh-backed chair allows air circulation that fabric or leather simply cannot match, regardless of how "breathable" they claim to be.
Foam Considerations
Foam and the fabrics covering it trap heat. After sitting for 30 minutes or more, you'll notice warmth accumulating where your body contacts the cushion. In air-conditioned environments, this is rarely problematic. In warmer conditions, it can become genuinely uncomfortable and lead to visible sweating.
Fabric coverings breathe better than leather or vinyl, but still don't approach mesh's ventilation. Perforated leather (common on executive chairs) offers marginal improvement but doesn't fundamentally change the heat-trapping nature of foam construction.
- Full mesh: Best for warm conditions, consistent temperature
- Mesh back + foam seat: Good balance, back stays cool
- Foam + fabric: Warm, moderate breathability
- Foam + leather: Warmest, least breathable
Comfort and Support
Breathability is important, but comfort encompasses more than temperature. How do mesh and foam compare for actual sitting comfort?
Mesh Feel
Mesh provides what's called "suspension" support—your body is held by the tensioned fabric rather than sinking into cushioning. Some people find this immediately comfortable; others describe it as "firm" or even "hard" compared to foam. There's no thick cushioning to sink into, which can feel less plush initially.
However, quality mesh conforms to your body's contours while distributing weight evenly. There are no pressure points from compressing through to the base. Many people who initially find mesh firm come to prefer it after adjustment, appreciating the consistent support without the "bottoming out" sensation of foam.
Foam Feel
Foam offers the familiar cushioned sensation that most people expect from seating. Quality foam provides initial give followed by supportive resistance—it feels welcoming when you first sit down. This plush comfort is why many people instinctively prefer foam when briefly testing chairs.
The challenge with foam is longevity. Over months and years of daily use, foam compresses and loses resilience. Areas under consistent pressure (seat centres, lumbar regions) develop permanent compression. Low-density foam may show significant degradation within a year or two; even high-density foam eventually loses its original properties.
Long-Session Comfort
For extended sitting sessions (4+ hours), mesh and foam perform differently. Foam's cushioning provides comfort initially but can become uncomfortable as you sink deeper and pressure concentrates. Mesh maintains consistent support throughout, though without that initial plush sensation. Neither is objectively better—it genuinely depends on personal preference and body type.
In-store tests of 5-10 minutes heavily favour foam's initial plushness. To truly compare materials, you need extended sitting time—30 minutes minimum, ideally several days. Be cautious about judging mesh comfort from brief showroom visits.
Durability and Maintenance
How long will your chair last, and how easy is it to maintain?
Mesh Longevity
Quality mesh is remarkably durable. It doesn't compress, sag, or lose support over time the way foam does. The tensioned fabric maintains consistent performance for many years. Premium mesh chairs (like the Herman Miller Aeron) are often still functionally perfect after 15+ years of daily use.
The vulnerabilities of mesh are tears and structural damage. A sharp object can puncture the weave, and once torn, mesh is difficult to repair. Edge bindings can wear on cheaper chairs. But assuming no physical damage, mesh outlasts foam significantly.
Cleaning mesh is straightforward: vacuum to remove dust and debris, spot clean with mild soap and water for stains. The material doesn't absorb spills the way foam and fabric do, making it more hygiene-friendly in shared or high-use environments.
Foam Longevity
Foam has a finite comfortable lifespan. Even high-quality foam in premium chairs will eventually compress and lose its supportive properties. The timeline varies with foam density, user weight, and hours of daily use, but 5-10 years is a reasonable expectation for quality foam under regular use. Budget foam may show wear within 2-3 years.
Foam is vulnerable to spills—liquids absorb into the material and can be difficult to fully remove. Stains, odours, and mould can develop in foam that's gotten wet and not dried properly. Fabric covers can be cleaned or replaced, but the foam itself is usually not serviceable.
Ergonomic Considerations
Both materials can be implemented in ergonomically sound chairs—material choice doesn't inherently determine ergonomic quality. However, certain tendencies exist.
Mesh chairs are common in the high-end ergonomic segment. Herman Miller, Steelcase, and other premium brands often use mesh for their flagship models because it enables consistent support characteristics that don't change over time. The material's responsiveness also suits dynamic sitting styles.
Foam chairs span all quality levels, from basic task chairs to premium executive seating. Ergonomic quality depends more on the chair's design, adjustability, and construction than on the foam itself. Don't assume foam means lesser ergonomics—many excellent ergonomic chairs use foam cushioning.
The Australian Verdict
For most Australian users, particularly those in home offices without robust climate control, mesh offers compelling advantages. The breathability factor alone makes summer workdays significantly more comfortable. Add mesh's superior durability and consistent support over time, and it becomes an easy recommendation for warm-climate use.
That said, foam isn't wrong for everyone. If you work exclusively in air-conditioned environments, prefer the plush cushioning feel, or simply find mesh uncomfortable despite extended trials, foam can serve you well—especially in premium chairs with high-density foam construction.
The hybrid approach (mesh back, foam seat) offers a sensible middle ground for many users, keeping your back cool while providing seated cushioning. Consider this option if you're torn between the two materials.
Ultimately, comfort is personal. If possible, test both materials for extended periods in real working conditions before committing. Your body's preference matters more than any general recommendation.