SKU 9875457 The primary materials that compose this product contain a minimum of 20 percent recycled content. From 5Ks to full marathons, the ASICS® Men's GEL-Kayano 30 shoe is designed to provide advanced stability and cushioning properties. The new 4D GUIDANCE SYSTEM™ helps provide adaptive stability. Placed on the inside of the midsole, this adaptive foam helps reposition your arch after each impact for a more supportive stride. We also updated the midsole with FF BLAST™ PLUS ECO cushioning. With approx. 24% bio-based content, this material helps create cloud-like softness in every step. PureGEL™ technology is strategically positioned below the heel and is 65% softer than standard GEL™ technology. Now you can make your distance training feel surprisingly smooth. The shoes have polyester, synthetic mesh lining. Engineered stretch knit upper improves breathability. At least 70% of the shoe's main upper material is made with recycled materials to reduce waste and carbon emissions. Removable OrthoLite™ X-55 sockliner improves comfort Reflective details improve visibility. The sockliner is produced with the solution dyeing process that reduces water usage by approximately 33% and carbon emissions by approximately 45% compared to the conventional dyeing technology. AHARPLUS™ heel plug improves the outsole's durability. External heel counter helps keep the foot stable and provide a more comfortable stride. Rubber outsole. Heel-to-Toe Drop: 10mm Imported. View Zappos.com Glossary of Terms ASICS GEL-Kayano® 30