Layers of Feel
Evolved from the DNA of irons that shaped the modern game, launched major winning careers and inspired generations of ‘tour edition’ muscle backs. Exclusively Grain Flow Forged in Hiroshima Japan, where Mizuno has refined the art of feel for over 50 years. Once again plated in copper, like Mizuno's legendary TN87 - for an impact sensation recognised as our purest ever.
A New Breed
Grain Flow Forged HD in Hiroshima Japan, from 1025E Pure Select mild carbon steel, then plated in soft copper and Nickel Chrome – the original layering from Mizuno’s great TN87 blade. The new Hybrid Muscle Back features a hollow construction with a Forged Chromoly Face and Neck.
The proportions, topline and offset transition of a classic Mizuno players muscle back, with generous sole width hidden at address. For consistent ball players pursuing added ball speed – without sacrificing their shot making options.
Mixes with any MP-20 Set
Play as a full set, long iron replacement or a mixed set with MP-20 muscle backs or MP-20 MMC. Our recommended breakpoints for blended sets are between 4 & 5 iron or 7 & 8 iron.
Complex, Loft Specific Construction
Our multi-thickness Grain Flow Forged Chromoly (2-8 iron face and neck) is dialled in to be consistently hot across the clubface. Twin 12g Tungsten weights (2-7 iron) deliver stability and an easy launch. A softer 1025E Pure select mild carbon steel makes the short irons (9/PW) soft and responsive.
Mizuno Design Team
"A few years back it was a surprise to see truly elite tour players with more than one long iron replacement – but now that we’ve found their acceptance point on offset, size and proportions, there’s a new set who are open-minded to the #5 iron and beyond. We’re excited to see what happens when they experiment with the HMB."