Spider GTX sets a new standard for performance and construction. They take inspiration from past Spider shapes with True Path alignment and now include extreme back weighting for improved forgiveness. Lightweight 6061 aluminum is used to build the 194 gram top cap that allows more weight to transfer to the outside of the frame. A back weight ring is made from heavy stainless steel to push the center of gravity deeper for less face rotation and more stability. Pure Roll² Insert is manufactured with black TPU urethane and silver aluminum beams to improve topspin across the face.