I bought some new Merrell Moab Ventilator Mid height boots that had a terrible uneven footbed in them. I had the same problem with two different pairs and got tired of returning them. I took a chance on these Sole Softec Responsies insoles and it paid off. After heating the insoles per instructions and wearing the boots for a few days my shoes are becoming comfortable to wear. These insoles turned a very uncomfortable boot into
a much more comfortable boot and gives good arch support.Thumbs up!
-kevin