Originally released in 1991, the Saucony Grid SD was the first to introduce the athletic brand's landmark cushioning system. This upgraded variant retools original materials with a suede, synthetic leather and mesh upper in a modern color block look. Supportive TPU straps and a reflective heel provide classic functionality. The sculpted, shock-absorbent midsole is installed above a bicolor Shadow 5000 outsole with triangular lugs.