- The New Balance 623 v3 banks on the success of its predecessor. It inherits the non-marking rubber outsole, the full-length injection molded EVA (IMEVA) midsole, and the bonus ABZORB heel for impact absorption.
- The new version features the QUIX technology, which allows wearers to make turns and lateral cuts easy and smooth.
- The most significant difference between the second and third versions is the upper. The old model uses mesh in some areas of the forefoot while the new version uses perforations on the leather material to keep the foot fresh.
The New Balance 623 v3 features a non-marking rubber outsole. This type of component does not leave scuff marks on the floor. It extends partly to the front of the upper and serves to protect the toes from impact and abrasion during workouts that need pushing off the ground.
It has flex grooves in the forefoot to promote inherent flexibility. It also has tread patterns present in the entire outsole, which add traction.
The shoe also uses the QUIX technology, which is an almost smooth part located at the front of the outsole. It serves to make turns and lateral cuts fast and easy.
This workout shoe from New Balance uses a removable ethylene-vinyl acetate insole. This material is lightweight, durable, and has shock absorption properties to keep the foot comfortable.
The full-length injection-molded EVA provides a firm and stable platform while still being flexible enough to accommodate natural foot movement.
In between the insole and midsole is an internal shank located in the midfoot area. It stiffens this part of the sole unit which forces the foot to bend at the forefoot and not stretch out the arch. It aims to prevent foot discomfort and injury.
The heel uses an additional cushioning unit called ABZORB. This foam technology uses particles that are uniform in shape and size, preventing it from quickly compressing and losing its form. It absorbs shock and immediately dissipates it, avoiding discomfort to the lower extremities.
The New Balance 623 v3 comes in both leather and suede versions. They feature perforations in the heel and forefoot areas to stop the foot-chamber from getting too hot.
It uses a traditional lace-up closure that secures the foot and prevents it from accidentally slipping out while the user is in motion. It has a lightly padded tongue that ensures the instep does not become uncomfortable when tightening the laces.
The collar, which is also slightly padded, averts the chafing of the ankle. It also locks down the back of the foot to keep it from slipping out.
The counter at the back cups the heel, keeping it stable during workouts.