This shoe features a breathable Flowknit upper that stretches and adapts to your foot for a secure, glove-like fit. A lace-free design lets you set it once and forget it, making every step quick and effortless. Underfoot, the StepON cork insole combines a heat-pressed footbed with 4mm of ultra high-intensity foam for responsive comfort and natural support. The versatile outsole—shared with the Flow model—uses a 4mm base paired with raised 2mm propeller lugs and hexagon studs to deliver grip without sacrificing flexibility. Signature divots at key bending points reduce stress, improving durability while allowing the shoe to move naturally with your stride. Weighing just 6oz (170g) per shoe in a women’s size 38, it fits true-to-size with a medium volume and a natural, unrestrictive feel.