You start the dishes standing square on both feet. Ten minutes later you are leaning on one hip against the counter edge, then swapping to the other side, then standing on the outside of one foot. Nobody decides to do that. It is what a body does when a hard floor has been pressing back at the same few points for a while, and it starts before the pans are done.

The floor is why. Your weight comes down and stops dead, so the load parks on the same patch of heel and the same line across the ball of your foot, minute after minute. Standing still is the actual problem, not standing. The ache is not from effort. It is from how little your feet are allowed to move.

This is not cushioning in the pillow sense. It is thick enough that your weight sinks in instead of stopping, and once your heel can sink, your foot starts making small corrections to stay balanced. Every one of those corrections puts the load somewhere new. That is the whole mechanism. A floor that keeps moving the pressure around, so no single spot has to hold it the whole time.

It is for one square of floor, and that is the point. The spot at the sink is the only place in the kitchen where you stand still long enough for the floor to hurt you. Everywhere else you are walking, and walking already does this for your feet. The instinct to cover more floor is the wrong instinct. The ache has one address.

Two honest limits. The thickness that does the work has to sit above the floor, so its border is something to catch a toe on when you turn away holding a full pan, and something a rolling stool stops dead against. And a mat changes the floor, not your feet. If the ache is coming from flat unsupported shoes or an old injury, this takes the edge off and nothing more.

The test is not how it feels the second you step onto it. It is whether you reach the last pan still standing on both feet.