After only about four wearings (all walking, not running), one of the black rubber tread pieces fell off the bottom of the shoe. Unbelievable that the assembly  workmanship or the glue used to attach the black rubber pieces to the bottom of the shoe could be so poor. My first experience after many years with a bad ASICS running shoe. Won't buy this brand again.[[ASIN:B00BMLTY8K ASICS Men's GT 2000 2 Running Shoe]]