The Wilson Staff Di6 irons have progressive and perimeter weighting which moves weight away from the face, creating a massively forgiving surface. Slight offset helps square the face at impact, while an elastomeric dampening layer cures vibration from off-centre hits by 1/3. The progressive weighting moves weight from the toe in the long irons to the heel in the short irons to maximize distance and playability. The Wilson Staff Di6 irons come with either Taper Tech steel shafts or a Nano-Tech graphite shaft. The steel shaft has a progressive tip design transitions from high tip flexibility in the long irons for higher launch, to a stiff tip in the mid to short irons for a lower launch and maximum control. The graphite shaft is the most consistent graphite shaft ever, with a stable tip for mid to high launch angles.