These Sugarpine boots are SO comfortable and lightweight!  Could not believe it - I have tennis shoes that weight more!  I am so glad I picked them after reading reviews of different boots for a while.  I have arthritis in my feet and they get sore easily.  I tried these on when they arrived and did not take them off all day!  Great footbed and ankle support.  I wear a 9 1/2 - 10.  I bought the size 10 and they are a perfect fit.  Thanks Ahnu!