Tecsee Blue Sky Linear

Tecsee Blue Sky is a linear switch built around HPE, the brand's UHMWPE-based housing blend meant to resist the softening and wear of pure UHMWPE while keeping a similarly solid, muted acoustic. The light blue translucent housing pairs with a white POM stem longer than a standard MX stem, with tight tolerances for low wobble.

Sources describe the keystroke as smooth throughout, with a firm bottom-out. It uses a two-stage spring in a five-pin PCB-mount format for hot-swap compatibility.