Every time I wear these shoes with the leather footbed liner they came with, I get blisters on my heels. These are my THIRD pair of Presidio shoes and this has never been an issue before. If I put the fabric footbed liners from my old Presidios into these new ones, they're fine. Please go back to the fabric footbed liners! They are thinner and allow enough depth at the heel cup for it to actually do its job and hold the foot in the shoe.