poor durability Inner soles crack along lines of vent holes under ball of foot where it flexes. Both left and right sandal. Then pinches foot with every stride. This happened after only wearing boating a few times. Never saw any hard use really. I have been a Merrell fan for many years, purchase this brand exclusively and have always been satisfied with comfort and durability. These sandals are the first exception and hopefully not a sign of the demise of my favourite brand.