With a minimalist design ultra light titanium hardware and a breathable evofibertrade upper that hugs your foot like a second skin the prolighttrade slx ii redefines high performance footwear the latest eastonreg ec90trade offers lightweight power transfer and includes replaceable heel pads while maintaining an ultra low 65mm stack height the supernaturalfit footbed provides customizable arch support right out of the box to maximize comfort and power transfer making this the most