When we are onto something good we try to make it better after two years of development thats exactly what weve accomplished with our best selling biom hybrid modeleccos first performance hybrid model now has a thinner midsole that creates a sleek clean look while also bringing players closer to the ground it also incorporates a two component tpu outsole of course ecco is continuing to use premium yak leather uppers to provide an exceptionally rich soft handfeel and the e dts system