We have announced that we are keeping the same shirts for next season. Apparently to be more sustainable.. I think the amount of kits that do come out every year is a bit mental..
Considering every team has 3 kits (and 3 corresponding goalkeeper jerseys), 2 years should be enforced as a rule. If you need a nrw kit every year, have the 3rd kit come out in a different year to the other 2.