Sorry, I thought it might've been one of those so uncool it's cool things - like the Greggs merch at Primark. In fact, didn't Lidl have merchandise recently? I think they did...
Eventually I got one of those drawstring Nike jobs - the actual material ones, not a shopping bag. Could breathe a sigh of relief as I'd finally made it. Even though it barely fit my kit in it.
I found secondary extremely stressful particularly with a mother who hated buying me clothes and thought one of everything was enough.
Brands don't seem to be such a thing for our current teens. Not at their school anyway. You'd genuinely get ripped at mine if you had offbeand PE trainers. I found it all so stressful.