Instruct: Classify the given Amazon review into its appropriate rating category
Query: Not comfortable for walking as it has very odd heel strike

Odd shoe. Not comfortable for walking as it has very odd heel strike. Either the sole flexes too much or the heel is shaped oddly, I don't know. But, when walking in the shoe it loudly rolls on the heel and is uncomfortable. I don't recommend. I didn't notice this on carpet so much so after wearing to work on hard surface floors I don't want to wear them anymore. Really check them out before wearing outside so you can promptly return for a refund.