For many of us, the café has become the new coworking space, a place to send off a few emails, power through a light design sprint, or finally edit that proposal over an iced oat latte. But while your laptop may have made the transition gracefully, your mouse probably hasn’t. The compact, flat mouse you toss into your laptop sleeve each morning may be convenient, but it does a number on your wrist. And while ergonomic vertical mice are kinder to your body, they’re awkward to carry and usually get left behind. That’s the tension Yolk solves, with a design that’s smart, ergonomic, and surprisingly fun.
The idea for Yolk came over lunch. At a café, the designer felt wrist pain from using a flat mouse, something a vertical mouse could solve, if only it were portable. Glancing at a folded sandwich sparked a thought: what if a mouse could fold too? That became Yolk, a 2-in-1 mouse that’s compact on the go and ergonomic when you need it.
Designer: blender KIM
Yolk is designed to act like two mice in one. In its default, closed state, it resembles a typical travel mouse, minimal, smooth, and small enough to slide into any laptop pouch. But with a few simple motions, lifting the top panel, sliding out the central knob, and snapping it shut, it transforms into a vertical mouse with a subtle but effective 25-degree tilt. This small angle is enough to relieve wrist tension while keeping the device compact.
The standout design element is the central knob. In vertical mode, it serves as both a scroll wheel and a natural thumb rest, with the angle precisely calculated to match your thumb’s range of motion. It’s a small detail that significantly boosts usability and comfort.
The charm of Yolk lies in its personality. That protruding scroll knob? It’s not just functional, it’s cute, iconic, and perfectly egg-like. Visible through a circular cutout in the mouse body, the rounded yellow knob recalls a sunny-side-up yolk or even an avocado pit. It’s a witty visual cue that gives the product instant identity.
The digital scroll pad replaces the conventional wheel in flat mode, keeping the profile smooth and responsive. The laser sensor is framed within a centered circular chamfer, and the yellow-accented power port adds a subtle design highlight. Even the reflection graphic on the top of the knob nods to the gleam of an egg yolk in sunlight. Every curve, color, and cut speaks the same playful language.
Yolk’s true innovation is in how it marries ergonomics and delight without asking the user to compromise. You don’t have to choose between wrist health and portability. You don’t have to carry two mice. You don’t have to settle for boring.
Instead, you get a device that feels as natural on a desk as it does in a café, as functional as it is joyful. It’s the kind of product that makes you smile when you pull it out of your bag, and makes your wrist thank you at the end of the day.
The post This Egg-Shaped Mouse Was Designed To Shift Between Regular And Tilted/Vertical Formats For Ergonomics first appeared on Yanko Design.