At just 175 grams size 425 the empire slx sets a new standard for light weight cycling footwear yet it doesnt compromise the structure or stiffness needed to put full power to the pedals thanks to a combination of exceptional fit a new evofiber sl one piece upper and the easton ec90 slx2 high modulus outsole and with replaceable heel pads full titanium hardware and our adjustable supernatural fit kit these are full featured shoes built to win and built to last specifications upp