Puma has introduced the Fuse, a new cross-training shoe designed to resist the toughest workouts. The all-new sneaker has been tried and tested by the brand’s athletes, including Lewis Hamilton, the company said. The Fuse features a 4mm drop and wide toe boxes to provide stability. Its Pumagrip rubber outsole is meant to provide all-purpose traction while a TPU heel clip offers additional support. The new Puma Fuse was launched on Jan. 7, in men’s and women’s sizing.