The ERS 4000 will feature the original Energy Return technology system from the early 90's. There are many recognizable Reebok running Technologies over the years, but one of the most sought after and recognizable is ERS. Reebok Energy Return System features a soft , but very responsive Hytrel TPU tube from Dupont industries.
This tech first launched in the late 80¡¯s in performance running and soon after became a staple of Reebok performance extending to training and basketball. The ERS 4000 comes equipped with the design lines and mark makers of the original ERS 4000. The design has been slightly adjusted to be more wearable for today's consumer
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Very responsive Hytrel TPU tube from Dupont industries
Original details of the ERS 4000
TPU D-Rings
Retro nylon underlays on the vamp
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