I HAD A PAIR OF NB 1008 XTRAINERS AND LOVED THEM BUT THEY WORE OUT MUCH MORE QUICKLY THAN PAST NB SNEAKS.  HOWEVER, FIT HAS ALWAYS BEEN VERY GOOD. I BOUGHT THE MX1010 SIGHT UNSEEN PRESUMING IT WAS SIMILAR.  IT IS A COMPLETELY DIFFERENT CONSTRUCTION - WEBBING, MUCH LIGHTER AND VERY NICE, THOUGH I THINK IT RUNS SLIGHTLY BIGGER THAN PREVIOUS NB SHOES I HAVE HAD.  I BOUGHT 8-D AND NOW THINK I SHOULD HAVE GONE WITH A 7.5. NOT SURE IF IT IS JUST THE DIFFERENT CONSTRUCTION THAT THE SHOES FEELS LOOSE OR AS IT SEEMED TO FIT CORRECTLY WHEN I TRIED IT ON UPON DELIVERY.  STILL LIKE IT AND FIND IT COMFORTABLE BUT REALLY ONLY REALIZED THE SIZE ISSUE AFTER TAKING OUT IT ON THE STREET WALKING / RUNNING.... OTHERWISE IT IS QUITE A NICE XTRAINER.