100% Recycled mesh uppers treated with 3M Scotchgard protector for stain resistance. Recycled materials used to create webbing and laces Dri-lex recycled textile socklining treated for moisture management and odor control Removeable energy return EVA footbed Dansko Natural Arch technology for added support with Propel forpart Strobel contruction for flexability while walking. I'm Green Biobased EVA (over 50%) outsole with rubber pads