Keycap Profiles Guide

A keycap profile is the physical shape of a keycap: its height, the angle it sits at, and the curvature of its top surface. These three properties combine to define how a keyboard feels under your fingers more than almost any other variable. Two keyboards with identical switches and the same PBT material can feel completely different just because one uses Cherry profile and the other uses SA.

Profile diversity exists because typing feel is genuinely personal, and different keyboards serve different needs. The mechanical keyboard community has been refining keycap geometry since the 1980s, and each profile on the market today reflects a specific set of tradeoffs.

Top surface geometry

The curvature stamped into each keycap's face shapes how your fingertip makes contact with every keystroke. Cylindrical tops curve along one axis, forming a trough that channels fingers along columns and gives clean, defined edges between adjacent keys. Spherical tops scoop inward in all directions, cradling the fingertip for a more centered, deliberate landing. Flat tops maximize surface area with no guidance at all, closest in feel to a chiclet or laptop keyboard. Most people have a strong preference once they've tried all three, but it takes a few sessions on each to notice the difference.

Sculpted vs. uniform

The most fundamental split is between sculpted and uniform profiles. Sculpted profiles angle each row differently, following the natural arc of your fingers reaching across the keyboard. Uniform profiles keep every row identical, which matters for keyboards where keys aren't in their usual positions, like ortholinear or split layouts. Neither approach is objectively better. Sculpted profiles reward touch typists with tactile row differentiation; uniform profiles give you complete layout flexibility.

Height

Height is the variable most people notice first. Low-profile options like PFF sit at around 5mm, bringing the keytop close to the desk in a way that feels similar to a laptop keyboard. Mid-height profiles like Cherry and PBS land around 7–9mm, which is where most people find a comfortable balance between travel and control. Taller profiles like KAT push past 13mm and produce noticeably deeper, more resonant sound from the larger air cavity inside each cap.

Keycaps for ergonomic keyboards

Split, ortholinear and column-staggered keyboards change the rules. Keys sit in straight columns instead of staggered rows, thumbs get their own cluster of keys, and many of these boards use low-profile switches to keep hands flat and close to the desk. Classic sculpted profiles like Cherry were designed around a standard staggered layout, so they don't map cleanly onto these boards.

KLP Lamé is a solid option for these boards: it was designed specifically for ergonomic keyboards. It's sculpted, with a deep scoop that cradles each fingertip and dedicated thumb and homing keys, so your fingers stay guided on split and column-staggered layouts. It's also one of the few profiles made for both switch families: Yuzu makes it with a Kailh Choc stem for Choc boards and with an MX stem for MX boards, each on its matching key spacing. It comes in 1u and 1.5u sizes, which covers most split and ortholinear layouts like the Corne, Sofle or Lily58, but not the long modifiers and spacebar of a standard staggered keyboard.

Yuzu compatibility

Keycaps have to match two things on your keyboard: the switch stem they clip onto and the key spacing they sit on. Here's how Yuzu's profiles line up:

• Cherry, KAM and PBS have an MX cross stem and standard MX spacing (19.05mm). They're made for standard-height MX-style switches from Cherry, Gateron, Kailh, Akko and others.
• PFF has an MX cross stem and MX spacing, but it's designed for low-profile MX switches: Kailh Choc V2, Cherry Low Profile, Gateron Low Profile and Huano Low Profile.
• KLP Lamé comes in two versions. The Choc version has a Kailh Choc V1 stem and Choc spacing (18 × 17mm). The MX version has an MX cross stem and MX spacing, and fits all MX switches, including Kailh Choc V2.

Two things to watch out for. Kailh Choc V1 switches have their own stem shape, so KLP Lamé's Choc version is the only Yuzu profile that fits them. Kailh Choc V2 switches take an MX stem, but full-height profiles like Cherry, KAM and PBS can bottom out against the plate on them, so pick PFF or KLP Lamé's MX version instead. If you're not sure which switches your keyboard uses, check its spec sheet before you order. Each profile page covers compatibility in detail.