Praise the Lord I found Gravity Defeyer!!! These are the most comfortable shoes I have ever worn. For tennis shoes, I only buy Gravity Defyer, and I recommend them to everyone who comments on them. My favorite shoes are the "Energyia". I walk three to five miles daily during the week, and these shoes are like walking on a cloud! I have always been able to wear them immediately right out of the box without worrying about the need to "break them in". I have also purchased their sandals, which are quite comfortable as well. All in all, Gravity Defeyer is my "go-to" for shoes. I love them!