Higher launching iron shaft that isn't lightweight - WRX Club Techs - GolfWRX
Here's the shaft flex you should play based on your swing speed
PING G400 Shaft Chart – Ted & Dave Custom Golf
KBS Golf Shafts - With so many shaft options to choose from, KBS Golf Shafts has the biggest selection of performance golf shafts to specifically fit your game. Find the right shaft
Dialing in Your New Iron Shafts - True Fit Clubs
Iron Shaft Comparison: How to find the right shaft for your game