I purchased a pair of Merrell Proterra and they are the most comfortable shoes I have ever bought! They are a different model than this, cost a little more. Made of leather. So no issues so far... had them for 1 year. Wore them right out of the box and no sore feet!! The shoe tightens comfortably to fit my foot perfectly. The soles have great grip in wet conditions and waterproof so perfect for spring and fall. I highly recommend the Merrell proterra (the model I have is charcoal and purple in colour). I never write reviews but I love them so much I had to share!