NEW BALANCE The 57/40 is the updated version of NEW BALANCE’s 574, a hybrid road/trail design that didn’t lean on visible technical features. The 57/40 has an overall sleeker silhouette provided by a slimmer last combines with a range of exaggerated features. The unique midsole combines a flared take on the classic 574 construction with ‘90s tech-inspired details, while the mudguard and eyerow feature the distinctive wavy embellishments of the ‘80s.