New trousers for my son

My son urgently needed new trousers and shorts. And because the summer hid for quite some weeks he also needed some a pair of long trousers. In my stash was a nearly completed pair of trousers I sewed last year but it was made of light cotton and was not warm enough for winter. I only needed to insert a elastic band and messure the hem.

Left: Burda Pattern#9641 style C, light jeans, 12 Euro/m, Karstadt Mainz
Right: Burda Pattern #9793, jeans fabric

The second pair are a type of capripants. (Please could one of my native english reader tell me the correct english word for this kind of trousers).
It s Burda pattern #9641 version C.