ERS 4000 Chalk & Kinetic Blue/Black - Premium Sports Chalk for Rock Climbing, Weightlifting & Gymnastics - Non-Toxic & Dust-Free Grip Enhancer

A bringback from early '90s Reebok running heritage, these ERS 4000 shoes are as legit as it gets. ERS stands for Energy Return System and its midsole technology in its truest form. A retro mix of nylon, suede, and synthetic give texture and depth to the upper. It's like you've already won.