The iSub Clapton coil by Innokin, is made with high grade organic Japanese cotton. These coils give exceptional taste for anybody using any of the iSub range tanks (iSub, iSub G, iSub Apex iSubS) These 0.5ohm coils are capable of an output up to 70W. If you're using any iSub tank look no further. Clapton coils are made by wrapping a thinner gauge of wire around a thicker wire through the middle. These two wires together give a larger surface area to the atomiser for a better flavour.