ALPHAEDGE 4D SHOES DESIGNED FOR THE FUTURE. Join Stella McCartney on a journey towards a positive future. This new Alphaedge 4D brings a stylish silhouette featuring our latest innovation in running technology. The adidas 4D lattice midsole was developed using 17 years of athlete data and 3D printing to deliver precisely-tuned support and cushioning right where you need it. The snug textile upper allows your feet to breathe as you go. The future is calling. Are you ready to answer?