Back in the ‘80s, the original RS (short for “running system”) was PUMA’s innovative cushioning technology. Today, the RS has reinvented itself in the RS-X, featuring a bulky design and fresh material mixes. This rendition encourages you to forge your own path with a bold colorway that makes any fit pop. | PUMA RS-X Alternate Route Sneakers in Dark Blue, Size 4.5 PUMA RS-X Alternate Route Sneakers in Dark Blue