Our lightest, most breathable construction in an airy knit with a subtle pattern. Recycled, antimicrobial lining has temperature-regulating J&M Smart Degree Technology® that delivers breathable temperature control to keep your feet feeling just-right all day. Removable, cushioned EVA memory-foam footbed. High-rebound, ventilated EVA sole for flexible comfort. Rubber heel for durability and improved traction.