The most notable design feature of the new 0311 iron line is COR2 a proprietary polymer core material that’s 20% faster than the original filler material yielding more ball speed accuracy and consistency with the same outstanding feel PXG irons are known for. The new irons feature more of the material than in the past as well as an extremely thin maraging steel clubface improving performance across the board.
Koepka who was a Nike player before the company stopped making clubs won with a mixed bag consisting of TaylorMade woods Mizuno irons and Titleist wedges putter and golf ball.
The FULL sole is available in 56°-60° while the MID is available in 46°-60° and the LOW in 56°-64°. The new XLOW comes in 56° and 60° only.