Been wearing Asics running shoes for years.  Always get size 8 which is half size over my normal shoe size but gives me roomy comfort.  I was excited to try these Cumulus and have to say they are like walking on a cloud.  Super comfy.  EXCEPT my toes are all the way to the end and front foot bed is somewhat squished.  I definitely could not have run in them if my toes were at the end just walking around the house.  Sad but have to return them.  Definitely go a half size up from your normal size, even if you already have room in your normal size.  And if you have a wide foot these are not for you!