The SQ SUMO has left the tee box. Nike PowerBow design and an ultra-light Cryo Steel face combine to deliver an expanded COR and high MOI. Now your entire game can experience the power of geometry. SQ SUMO Iron Geometry: Long blade length, wide sole and Nike PowerBow design deliver an extreme perimeter-weighted club and our highest MOI iron set yet. Cryo Steel Face Insert: Lightweight Cryo Steel material in the long irons (#4-#7) provides a large responsive sweet spot for maximum distance and increased forgiveness across the clubface. Nike PowerBow Weighting: Weight is to move the CG (center of gravity) low and deep, increasing the MOI and creating a more stable iron at impact. TPU Insert: A soft vibration dampening TPU material dampens unwanted vibrations at impact.