Porsche Design Sport and adidas are marking the 10th anniversary of their ongoing collaboration by presenting a limited-edition PDS UltraBOOST, offered in a striking triple-black colorway. The upper, constructed from a combination of airy spacer-mesh and soft, pin-perforated leather, rests on an energy-returning BOOST midsole in black. The sturdy rubber outsole, meanwhile, is engineered with Stretchweb technology and adidas' Torsion System, delivering stability and grip without sacrificing ground feel. A seamless lining, good for increased comfort and reduced skin irritation, rounds out the details. The all black UltraBOOST is available in limited numbers at select retailers, Porsche Design Stores worldwide and online at adidas.com and porsche-design.com.