Puma | CELL ALIEN KARL Shoe Size (UK):11 These shoes are lightweight and

These shoes are lightweight and collapsible for easy packing

For a lightweight shoe that wins in style and comfort

By combining energy-returning cushioning with progressive styling

The super-soft Crater Foam midsole is made from a spacey mix of approximately 11% Nike Grind rubber and foam materials

Designed for Kyrie Irving's creative and unpredictable game

Puma | CELL ALIEN KARL Shoe Size (UK):11 These shoes are lightweight andDuring the 1990s, PUMA introduced the first iteration of its CELL technology. Innovated with the structural integrity of a hexagon in mind, it provided a shoe with stable cushioning one that could support stronger, more dynamic movement. In 1998, the CELL Alien was released. With a Cell bubble packed heel for extra cushioning, this shoe was designed for high mileage. Today, the CELL Alien is back, with a chunky, retro chic silhouette.