The Hexalite hexagonal cushioning helps soften impact. These Reebok Aztrek Double Nu Pops women's retro running shoes in Black have a playful, modern attitude with a stacked midsole for a platform-style look. Pops of color add a fun, retro vibe, while the mixed textile and synthetic nubuck upper adds texture and depth. A '90s-inspired Aztrek reimagined for the future. Color: Black / Alloy.