NEW BALANCE M991UKF. To celebrate 40 years of manufacturing New Balance in the United Kingdom, the firm reinterprets the classic 991GL by slightly modifying the shades. Its upper combines pigskin, mesh and synthetic material. ABZORB midsole. Rubber outsole. Manufactured in the UK at the historic factory in Flimby, Cumbria. Very selective distribution and very limited quantities. Only one pair by customer. No return. No exchange.