Underthinking Rugby Jersey Manufacturing

So I attended the Argentina vs England RWC match at the Forsyth Barr Stadium in Dunedin. Just for clarity it has been renamed Otago Stadium for the duration of the World Cup, because apparently the fact that this company helped fund its construction does not mean anything. Also its fun to confuse foreigners.

"So there's a Stadium there, but it says Otago Stadium on it, and this map says Forsyth Barr Stadium"

Seriously I understand that the IRB signs deals with sponsors for a lot of money, but they seemed to have sold things that don't belong to them. My body for a start, I am not allowed to wear clothing to a game that predominately displays a rival sponsors logo on it.

Which means no NASCAR driver can attend any match.

But I have digressed my concern was with the English rugby teams jerseys. I don't really care that they are black, although the argument that white and blue striped tops would clash with white jerseys is tenuous at best.

"Wait, oh crap I thought you were on my team, due to the white. Due to the speed I have chosen to ignore the difference between red and blue."

I am more concerned with the fact the English numbers wouldn't stay on, at one point Johnny Wilkinson was playing in number 1U, which I thought was quite innovative for a normally traditional RFU.

"GO AWAY, your numbers are a disgrace"

 This coupled with Sonny Bills ripped shirt (I will not be posting pictures of this) and brought back memories of the first time Adidas manufactured the All Black jersey's and they just fell off. I guess they were trying to use revolutionary fabrics.

This scientist wished to remain anonymous after a failed experiment with tissue paper as Rugby jersey's.

I guess what I want to know is how do these major manufacturers test their jerseys? Perhaps after years of manufacturing soccer jerseys, they are not aware of the rigours a Rugby jersey faces.

"Well it looks pretty strong, lets go with it"

I mean the SBW jersey was a one off, and can be explained away as a defect, but the English numbers and the 1999 AB's Jerseys the whole team had issues.
So that would suggest a lack of testing.

Perhaps Nike and Adidas should outsource to these guys.