- White, black and grey New Balance 550 low-top trainers for boys - Upper: leather, cut-outs placed - NB logo sides - Non-slip outsoles, round toes - Split eyelets, lace closure New Balance's 550 model is back with a vengeance, having quickly established itself on the basketball court. Its low, aerodynamic profile and reliable design make these trainers both classic and timeless for all seasons.