Umbro were part of Nike until they sold them to a brand marketing group called Iconix in 2012. They're making a bit of a comeback however and now make West Ham's kit. In the same way that Warrior overpaid for the Liverpool kit to get a foothold in the market, maybe we could do a similar deal with Umbro, who would be delighted to get a prestigious name like us on their roster.
I'd love it, aside from the historical connection between us, our best kits have always come from them.