The Nike ISPA Flow 2020 SE ‘Black Iron’ showcases a winterized rendition of the popular lightweight sneaker, maintaining its summer-ready appeal while incorporating neutral hues. Departing from the synthetic and mono mesh construction of the original ISPA Flow 2020, this iteration features a grey quilted textile upper, complemented by black accents that designate zones of insulation. Noteworthy design elements include pull tabs located at the tongue and heel, a cinched drawcord encircling the collar for a customized fit, as well as circular perforated suede inserts positioned at the quarter panel and back heel. Offering responsive cushioning, the sneaker is equipped with a solid white foam midsole, bolstered by translucent rubber pods beneath the forefoot and heel for enhanced traction and durability.