Hard wearing trouser reccomendation?

[Abb111]

Quick question -does anyone have reccomendation for trousersthat are hard wearing -knees particularly? My 8 year old boy goes through joggers so quickly but also hates firmer materials. 🙄

I just go for Asda George multipacks. They are generally very good. Most of the ones we've bought have survived 3 rough boys so far