Fibreglass flexes more, feels softer and costs less. Carbon is stiffer, more responsive and more durable. The weave numbers — 3K, 12K, 18K, 24K — describe the construction of the fibre, not its quality, and a higher number does not mean a better racket.
What the face does
The face is the flat surface of the racket, bonded over the foam core. It determines how much the hitting surface flexes on impact, how quickly it returns energy to the ball, and how much shock reaches your hand.
It matters — but less than shape, weight, balance or core firmness, and considerably less than the marketing around it implies.
Fibreglass
Flexible, forgiving, comfortable and inexpensive. A fibreglass face deforms more on contact, which spreads the impact over a longer moment and softens the feel. That flex is also why fibreglass frames are more forgiving off-centre.
The trade is responsiveness. A fibreglass face returns less energy, so you supply more of the pace yourself. For a player who isn't swinging hard enough to compress a stiff face anyway, that is not a real loss.
Fibreglass is not a budget compromise. It is the correct material for most club players, and several of the best-selling frames in the world use it deliberately, including at prices well above entry level. adidas is a tidy illustration of where each material is aimed: the Drive 2026 (RRP $169), their beginner round, has a fibreglass face, while the three 2026 Metalbones use a 16K carbon face. Four fibreglass-faced frames from our shelf — a round beginner's racket, a soft diamond, a tour-brand all-rounder and the Drive — with live prices:
Carbon
Stiffer, more responsive, more durable and more expensive. A carbon face deforms less, so more of your swing energy goes back into the ball. For a player generating real racket-head speed, that is a genuine advantage.
Carbon also transmits more of the impact to your arm. If you have any elbow or shoulder history, a stiff carbon face over a firm core is the combination most likely to aggravate it.
What 3K, 12K, 18K and 24K mean
Carbon fibre is woven from strands called tows, and each tow is a bundle of filaments. The number tells you how many thousand filaments are in each tow — 3K is three thousand, 24K is twenty-four thousand.
It is a description of the weave, not a quality rating. Read that sentence twice, because the entire industry markets these numbers as though bigger is better.
- What the number changes — mostly how the weave looks and how thick each layer is.
- What it doesn't — on its own, a higher or lower number does not make a face stiffer, softer, more powerful or more durable. The grade of the fibre, the resin, the number of layers and how they are laid, and above all the core decide that. Toray's fibre data lists the same stiffness for a given grade at every tow size.
Hirostar's 2026 range runs across all three weaves, which makes it a second test of the same idea. The Alien Core and Horizon are 12K, the Redstone and Blackstone are 18K, and the Alien Pro is 24K. Hirostar sells that 24K face on "maximum rigidity", but the Alien Pro also pairs it with a hard core and a diamond head, and those are what make it the hardest, most demanding racket of the six (padel.how scores its comfort 5.5 out of 10). The weave number describes the weave. The core and the shape decide how the racket feels.
Aluminised, PTFE-coated and other terms
Brands apply various treatments over the weave. Aluminised carbon adds a metallic layer that changes stiffness and appearance — adidas's Carbon Aluminized 16K, on the diamond Metalbone 2026 and the round Metalbone CTRL alike, is the current example on our shelf. PTFE coatings reduce surface friction; for the opposite, a rough face that grips the ball, see rough vs smooth faces. These are real engineering choices with real effects, but they are refinements — they will not turn an unsuitable racket into a suitable one.
So which should you buy?
Buy the shape, weight, balance and core that suit you first — our how to choose a padel racket guide walks through all four. Then take whichever face material the rackets meeting that description happen to have. In practice the face tends to sort itself out: entry and mid-tier frames use fibreglass or a soft graphite, performance frames use carbon, and both of those conventions exist for sound reasons.
The one time to override that: if you have arm trouble and are choosing between two otherwise identical frames, take the fibreglass one, or a carbon racket with a soft core.
Every product page in our range lists the exact face material the manufacturer publishes, and we group them into filterable bands so you can narrow by it if you want to.
Sources
We checked every rating and source on this page on 30 October 2026. Each one links to the page it comes from.
- padel.how (ten scores out of 10, added up to a score out of 100): Hirostar Alien Pro 2026.
- Toray: the typical fibre properties in its Carbon Fiber Card.
- Specifications: each maker's published figures, as listed on every racket's product page.
Filter by face material
Fibreglass through to 24K carbon, on every racket we range.
Written by the Australian Padel Shop team and last reviewed on 20 October 2026. Prices on this page are pulled live from our catalogue. We publish the manufacturer's specification for every product and record where and when we checked it. Where we haven't tested something ourselves, we say so.