ASICS GEL-Kayano 31 Women's Running Shoes Black/Pure Silver : Move through the miles in the ASICS GEL-Kayano 31! This reliable support shoe provides adaptive stability and improved traction with every step. The 4D Guidance System leads your foot through a more efficient and balanced stride. This technology adapts to your form when fatigue sets in, providing smooth and reliable support for long distances. Enjoy soft landings from the PureGEL technology in the heel, while FF BLAST PLUS ECO offers eco-friendly softness. Smooth and supportive, the ASICS GEL-Kayano 31 provides comfort for long distances! What's New? Knit collar construction and pull tab provide a modern step-in design with easy on/off capabilities. HYBRID ASICSGRIP outsole improves traction and adds a soft underfoot feel. Engineered mesh upper keeps you cool and comfortable during long distances. Who's it for? Overpronators who need comfort and support for daily training runs. Runners who want long-lasting softness and stability during long-distance races. Shoe Technology Upper: Engineered mesh upper improves breathability to keep you cool and comfortable. Knit collar construction and pull tab create a modern step-in with easy on/off potential. Reflective details enhance your shine in low-light situations. External heel counter improves stability and comfort. Ortholite X-55 sockliner improves comfort. The sockliner features a dyeing process that reduces water usage by approximately 33% and carbon emissions by 45% for sustainability. Midsole: FF BLAST PLUS ECO includes approximately 20% bio-based content for cloud-like comfort.PureGEL technology in the heel provides lightweight cushioning for softer landings. 4D Guidance System adapts to your form for an efficient and balanced stride. Outsole: Hybrid ASICSGRIP improves grip and adds a soft underfoot feel.