Why Keycaps Matter More Than Most People Realize
Keycaps are the only part of your keyboard your fingers actually touch. They determine the texture under your fingertips, the height and angle of each key, how legible the legends stay after years of use, and how the keyboard sounds when you type. Yet most keyboard buyers spend about 10 seconds thinking about keycaps before choosing whatever looks cool. Here's what actually matters.
Why the stock keycaps are often the weakest part of the keyboard
Keyboard manufacturers allocate budget to what sells the keyboard — the case, the RGB, the switch type. Keycaps are often where cost-cutting happens. A $150 keyboard might have excellent switches and a solid PCB paired with ABS keycaps that start shining within three months of daily use.
Swapping keycaps is the most visually and tactilely transformative upgrade you can make to an existing keyboard. You keep everything you like about the board while replacing the surface you actually interact with.
Keycap material: ABS vs PBT
These two plastics dominate the keycap market. Understanding the difference is the most important thing you can know about keycaps.
ABS keycaps
ABS (Acrylonitrile Butadiene Styrene) is cheaper to manufacture and easier to work with, which is why it's the default material on most bundled keyboard keycaps.
It feels slightly smoother and has a subtle sheen out of the box. Legend printing on ABS takes well — colors are vivid and consistent. But the material is softer, and the surface texture wears down with use.
After 3–6 months of daily typing, ABS keycaps develop shine — a greasy, reflective appearance on the most-used keys (home row, spacebar, WASD for gamers). The texture smooths out completely and the surface looks like it's been polished. Many users find this aesthetic off-putting, and functionally the smooth surface offers less fingertip grip than fresh ABS.
ABS also yellows over time with UV exposure, which affects white and light-colored sets particularly. A cream-colored ABS set will shift noticeably toward yellow within a year near a sunny window.
PBT keycaps
PBT (Polybutylene Terephthalate) is harder, denser, and more resistant to wear. It costs more to manufacture correctly, which is why it appears on mid-range and premium keyboards.
PBT keycaps have a subtly textured, matte surface that resists shine. After years of daily use, they look nearly identical to how they arrived. The feel is grippier and more tactile under fingertips than ABS.
PBT also resists yellowing. The harder plastic doesn't absorb UV and oils the same way ABS does.
The only downsides: PBT is harder to manufacture in complex shapes (rare, non-standard keycap sizes can be harder to find in PBT). And some cheap PBT sets feel rough or inconsistent — quality varies between manufacturers. Stick to reputable brands and read reviews.
How legends are applied: printing methods matter
The legend is what's printed on each keycap. The method used to create it determines whether it fades.
Pad printing: Ink applied to the keycap surface. Cheap and fast. Starts fading after 1–2 years of regular use. Found on budget keyboards.
Laser etching/engraving: A laser removes material from the keycap surface to create the legend. More durable than pad printing but can feel rough to the touch. Often used on backlighted keycaps (the engraved legend lets light through).
Dye-sublimation: A heat process that bonds dye permanently into the keycap material. Cannot fade because the dye is inside the plastic. Only works on lighter-colored keycaps (you can't dye-sub white legends onto black keycaps). Common on quality PBT sets.
Doubleshot molding: Two separate plastic injections create the keycap — one injection for the keycap body and a second for the legend insert. The legend is physically embedded as a different-colored piece of plastic. It cannot fade, wear off, or change because it's not surface printing — it's structural. This is the highest-quality and most durable legend method.
If you're buying a premium keycap set intended to last years, look for PBT material with doubleshot or dye-sublimated legends.
Keycap profiles: the geometry of the key
Profile refers to the shape and height of keycaps — how tall they are and at what angle the top surface sits. This affects typing feel more than most beginners expect.
OEM profile: The most common profile on pre-built keyboards. Sculpted (each row has a different height and angle for natural finger positioning). Medium height. The baseline experience for most users.
Cherry profile: Slightly lower than OEM, also sculpted. Very popular in the enthusiast community. Feels slightly faster and more controlled than OEM. Wide availability of keycap sets.
SA profile: Significantly taller than OEM or Cherry. Sculpted with a deeply spherical top surface. Produces a retro, typewriter-like aesthetic and feel. The tall keys require adjustment for users accustomed to lower profiles — expect a week or two of adapting.
MT3 profile: Designed by input.club. Similar height to SA but with more pronounced spherical dish and a different curve angle. Popular for its ergonomic feel and vintage aesthetic. Less available than Cherry profile.
DSA profile: Uniform height across all rows (not sculpted). Lower than Cherry. All keys the same height means you can arrange them however you want — popular for custom layouts. Less natural for touch typists who rely on row height differences.
KAT profile: A newer profile that blends SA height with a less extreme spherical dish. Comfortable and increasingly available.
For most users, Cherry or OEM profile is the right starting point. Branch into SA or MT3 once you've used Cherry enough to know what you're comparing against.
What makes a good keycap set for gaming
Gaming-specific considerations point toward a few specific properties.
Legends and labeling: Many gamers use blank keycaps (no legends) once they've developed muscle memory, which removes the concern about legend durability. If you need legends, doubleshot wins.
Profile: Lower profiles (Cherry, OEM, DSA) allow for slightly faster hand movement and feel faster during rapid key sequences. SA's taller keys can feel slower to some gamers.
Texture: A light texture on PBT gives better grip for sweaty fingers during intense gaming sessions. Smooth ABS becomes slippery under these conditions.
WASD differentiation: Some gaming keycap sets include textured or colored WASD keys that let fingers identify position without looking. A practical choice for long gaming sessions.
The bottom line on keycap investment
The best upgrade path: replace budget ABS keycaps with a mid-range PBT set ($25–50) with dye-sub or doubleshot legends as soon as you buy a keyboard you intend to keep. The feel improvement is immediate, the legends stay sharp, and the keyboard looks better for longer.
A premium keycap group-buy set ($80–200) makes sense if you're building a specific aesthetic around a custom keyboard or want the best possible material quality. But a solid mid-range PBT set from Akko, HK Gaming, or Epomaker delivers 90% of the experience at a fraction of the cost.
The keycap is what your fingers touch. Treat it accordingly.
Frequently asked questions
What is the difference between ABS and PBT keycaps?
ABS (Acrylonitrile Butadiene Styrene) keycaps are cheaper, easier to manufacture in complex shapes, and take dye-sublimation legends easily. But they develop shine (a greasy appearance) within months of use as the surface texture wears down. PBT (Polybutylene Terephthalate) keycaps are thicker, more resistant to shine, feel more textured, and hold their appearance for years. PBT is the better long-term material for most users.
Do keycaps affect the sound of a keyboard?
Yes, noticeably. Thicker PBT keycaps produce a deeper, lower-pitched sound compared to thin ABS keycaps. The difference is subtle but audible on a quiet board. Keycap profile (height) also affects sound — taller profiles like SA and MT3 produce a higher-pitched clack than shorter profiles like Cherry or OEM.
What keycap profile should a beginner start with?
OEM profile is what most keyboards come with and is the best starting point for comparison. Cherry profile is slightly lower and widely available. Both are sculpted (different row heights) and feel comfortable for touch typists. Avoid SA or MT3 as a first choice — the tall profile requires adjustment if you're used to lower profiles.
Are more expensive keycaps worth it?
Premium keycap sets ($80–200) offer thicker PBT, more consistent colorways, unique legends, and often dye-sublimated or doubleshot legends that never fade. They're worth it for people who keep the same keyboard for years and care about aesthetics. Budget PBT sets ($25–50) from brands like Akko, Epomaker, or HK Gaming offer good quality and are a better value for most users.
What does 'doubleshot' mean?
Doubleshot keycaps are manufactured by injecting two layers of plastic — one for the legend and one for the keycap body. The legend is physically embedded in the keycap, not printed on the surface. It cannot wear off because it extends through the keycap material. This is the most durable legend method available and is worth seeking out on any premium keycap set.