(as) soft as down

Exceptionally soft and smooth. Refers to the fine, soft, and fluffy feathers that form on young birds, especially ducks. I love how your face feels after you shave—it's as soft as down! This is my favorite blanket to get snuggled up in at night. It's soft as down, and it keeps me nice and warm in bed. This kitten is just adorable—and soft as down!