The second iteration of our fierce Fuse franchise incorporates insights from athletes and the community for improved performance. Built upon the foundational principles of the original design, which include fit, stability and support, this premium pair is engineered to increase output. Featuring no sew construction for enhanced durability, PUMAGrip rubber for traction, PUMAFlex metatarsal grooves for foot splay and a heel clip for minimizing unwanted movement, these track-ready trainers take your progress up a notch.