Based on 1970s running sneakers, the I-5923 marries vintage looks with modern tech. In a tonal ‘Crystal White’ colorway, the design features a stretch mesh upper, serrated Three-Stripes branding, and premium suede overlays on the toe box, laces and heel. Underfoot, the retro-modern look is completed by an energy-returning Boost midsole and gum rubber outsole.