<p>The GEL-KAYANO® 12.1 sneaker combines iconic design details from the version that launched in 2006 and combines them with a modern tooling system.</p><p>This design's upper was inspired by European gothic armor and it's structural, metallic properties. Meanwhile, its open mesh underlays help improve airflow to keep feet cool.</p><p>The midsole features the same tooling system from the GEL-NIMBUS® 17 shoe. It was originally engineered for comfort during the duration of marathons, featuring dual GEL® technology inserts and a FLUIDRIDE™ cushioning structure.</p>