Refined Shaping Experience unrivaled ball-striking through a sleeker and refined shape featuring a thinner topline and reduced offset that inspires precision and playability. Enhanced Feel Through Forging & Foam Tech Each TEC iron is crafted from 1025 carbon steel and precision-forged 5 times to deliver soft, player-preferred feel. A hollow body design is filled with a new foam that is lighter and softer to enhance feel and feedback. Increased Speed and Stability: PWRSHELL H.O.T Face & Tungsten Weighting Dynamic distance is unleashed using a hollow body, a thinner and more robust PWRSHELL insert with H.O.T Face Technology, and 20g of tungsten in the toe for added stability.