- Grain Flow Forged Chromoly: Our strongest Forged material with the solid, soft consistent feel of Grain Flow Forged
- Harmonic Impact Technology: Fine tuned head geometry delivers ideal impact feel and feedback
- Copper Underlay: Thin copper layer beneath a nickel chrome to provide a further enhanced impact feel
- Hot Metal Blade Design: Grain Flow Forged 4135 Chromoly face and neck (2-8 iron) combined with COR Forged Hollow Body.
- Hybrid Muscle Back: A high performance hollow body hybrid structure is formed by utilizing a Grain Flow Forged Chromoly Face and neck part, fused to multi-material body