M1 irons feature both Speed Pocket Technology and Face Slots, which are designed to increase flexibility at the boundaries of the clubface to improve consistency of ball speed on off-center impacts. This combination of technologies is designed to produce longer, higher shots with improved consistency and dispersion on all shots.
With a smaller overall head size, reduced offset, thin toplines, and shorter blade lengths, M1 irons are more compact than traditional distance irons and provide a confidence-inducing look at address. The result is a visual appearance at address suited for the aspirational and better players while offering performance typically found in modern distance irons.