At some point, Bran describes Summer as being larger than his pony. This is the best description we have of the size of adult Direwolves in the ASOIAF universe. 

At some point, Bran describes Summer as being larger than his pony. This is the best description we have of the size of adult Direwolves in the ASOIAF universe. 

tags: We Have Hope....,

from: https://gingeyy.tumblr.com/post/40534125520