It is popular, as the name says, for use in deep powder.

The snow was deep; they were up to their noses in powder.

All at once the Humvee was running in slippery powder again, better than a foot of it.

The pigment is the same as chalk, only in powder.

He stumbled to his feet, knee deep in white powder, and looked around.

He came to rest in loose powder, staring up at black sky, the cold stars.

Eager to be the first in fresh powder, regulars seldom want to wait for anyone.

The mountain was covered in fresh powder, and we skied all day.

I put stuff what man gave me in new powder.

"Until now, I had never skied in powder up to my waist."