What TaylorMade Says:
Stealth UDI is powered by SpeedFoam™ Air for a penetrating ball flight, optimal distance and precision playability.

Details & Benefits:

• Flight Control - Whether it’s a tight tee shot or reaching a par 5 in two, you need to be able to confidently pull a club and know it’s going to fly
  like you envision. Introducing the all-new Stealth UDI, powered by SpeedFoam™ Air for a penetrating ball flight, optimal distance, and precision
  playability.
• The Ultimate Driving Iron - The ultimate blend of control and versatility, Stealth UDI is a powerful option from the tee or the turf. Delivering a low
  launch with mid-to-low spin in a forgiving head design, it’s built for forgiving long iron shots and stingers alike.
• Player Inspired Shaping - Stealth UDI offers a traditional address view with Tour-inspired shaping, a narrower sole width (compared to DHY) and
  minimal offset. It’s built to meet the eye of better ball strikers, but offers an enhanced level of forgiveness compared to standard long irons.
• Close The Gap - Don’t guess what you can measure. By knowing how far you hit your longest iron and shortest fairway wood, you can determine the
  precise distance gap at the top of your bag. This is where UDI/DHY lives, helping you close the gap at a critical phase of your set.