have on
phr. v.. A2 Elementary Oxford
phr. v.. to wear a piece of clothing, jewelry, or a pair of glasses.
phr. v.. to be wearing a garment or accessory; functions as a stative phrasal verb indicating a current state of dress.
She has a red coat on today.
I didn't recognize him at first because he had a hat and sunglasses on.
The suspect was reported to have on a dark navy blazer and tan trousers at the time of the incident.
Usage
usually separable; the object (clothing) often sits between 'have' and 'on'.
Teaching tip
contrast with 'put on' (the action) and 'wear' (the state); 'have on' is more common in spoken English when describing someone's current appearance.
Pitfall
I am having a coat on.I have a coat on.this phrase is stative and is almost never used in the continuous '-ing' form.