990 V4 was remodeled in 2016 which still remain the upper design but updated with new technology. It came with classic suede and mesh upper while added an extra 30 percent breathability. The "N" on the quarter panel accents with reflective material. The amazing ENCAP midsole is the consists of a foam cushioning. It also featuring DuPont™ Engage® and slip-resistant rubber combined with a soft midsole and insert.