This edition of the ECCO ST. 1 HYBRID is a five-eyelet Derby crafted in leathers that were made using our state-of-the-art DriTan™ Technology, which implements less water and chemicals in the tanning process. Built on a tech-infused sole featuring ECCO's SHOCK THRU element, these are smart enough for the office, yet, because they're so comfortable, you'll want to wear them around the clock.