The X10-EL (Extra Light) sits in the middle of KMC's range. It goes to a fully nickel plated chain that gives its shiny silver appearance and also offers superior corrosion resistance.
The inner and outer links on the X10EL are also hollowed out to shave some grams bringing it down to 262g. These hollowed out links also aid in shedding mud.
The outer plates feature KMC's Double X Bridge shape and chamfered internally and externally for a brilliantly quick shift. The rivets that hold the chain together have a mushroomed head for additional strength.
This is a non directional chain so you don't have to worry about which way to put it on. It's also compatible with all other brands 10 speed systems.