I love these boots because they are so lightweight.  They are comfortable and warm outdoors in the snow.  I just wish Crocs would make 1/2 sizes because they are a little on the large side at the front of the foot. Heel and instep are fine.  I wear an 81/2 and ordered a 9.  I didn't want to return them so I added an insole for better fit.  The 8 would have been too small.