Pair of grey crew socks with navy cuffs, each knitted with x, y and z axis arrows, the right sock labelled right-handed and the left sock left-handed

Coordinate Frame Socks

A right-handed frame on the right foot, and its mirror image on the left, which makes the left one left-handed. It is not a mistake. It is geometry.

Size
From
The navigation side of Aeron
Item code
AER-COORDINATE-FRAME-SOCKS-UK4-7

Why it's true.

Mirror a right-handed coordinate frame and you get a left-handed one. A left foot is a mirror image of a right foot, so the left sock's frame is left-handed, and its cuff says so. The colours follow the 3D convention: x red, y green, z blue.