If you check the full story and what was actually said you will find that as usual the media have twisted the words.
You'd have thought they could have found him a pair of non ripped tracky bottoms! and is that a chilli pepper flying through the air?
I think you'll find he didn't zip them down - track suits used to have and probably still do, have zips from the bottom to the calf to allow you to put them on over shoes/trainers.
Zips very useful for us poor folk with thin ankles and otherwise chunky legs.....sorry to share my poorly shaped legs( the rest of me is George Clooneylike)