Instruct: Classify the given review into positive or negative sentiment.
Query: Disappointed

This slipper looks great, but within 3 months there are holes in the insole. I have pedicures every 3 weeks which alleviates poorly maintained feet as the cause. The material used in the insole, now the exposed material, make my feet sweat and burn. I have owned Daniel Green slippers previously, twice. Sadly, this pair has been a waste of my money.