These came today and were immediately tight.  I could barely get my left foot in the shoe.  After an hour of walking the right food did stretch enough to be almost normal; however the left foot cross strap is way too tight.  Even with a lot of stretching it remained too tight and was strangling my left big toe.  I just could not make it work.  The shoe also seems to to be on the short and narrow side.  My heel was at the very end of the shoe.  The shoe is super cute though so I am exchanging for a 1/2 size up and hoping that will be perfect as other reviewers noted.  Sadly, the red color is no longer available so I opted for Olive.  Original size was 7.5M, exchanging for an 8M.  5 stars for looks and footbed comfort.  0 stars for the tight cross straps.  Jambu's are super cute and comfy but the quality control is very poor.  Some styles a perfect and true to size and others are way off the mark.  The style and comfort are worth the effort to find the right fit though.

Update:  Just got the size 8 in sage.  They are a perfect fit.  Definitely order a half size up.