More durable than non-durable...

Herman Miller/MLHR, the maker of office furniture (including the Aeron chair), breaks out above a massive base, with explosive volume.

The size and quality of this breakout, however, is more evident when viewing the weekly chart.

MLHR shares easily took out resistance at ~$30 (a price it has not traded above for 4 1/2 years) and the line of declining tops from the all-time high set seven years ago. No wonder total volume during yesterday's breakout was so explosive, and provides at least one answer to Yash's question asked earlier.