Answer:
A stylish winter top that covers your larynx.
If you happen to wake up at dawn, you'll probably find this covering the lawn.
What has hands but canβt clap?
What is born on the ground but floats to the sky, to be returned back again from the clouds up high?
Once you know it exists, it no longer exists. What is it?
I am a room that has a roof but no walls. What am I?