For club tournaments that need it, who sometimes uses a waistcoat and where did you get it?

I have been looking at sportsdirect and amazon for a descent one for a cheap price but it would need 2 real pockets to put the chalk in.
Like https://be.sportsdirect.com/howick-t...lcode=yk354700, unfortunantly it doesn't always mention if the pockets are real or decorative.

If i'd order from sportsdirect i'd like one of those Rocket towels too..

Towel: https://be.sportsdirect.com/83ssp/ri...lcode=76610403

Went to a local sportsdirect shop yesterday but they didn't have any waistcoats, or that towel.