Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.

I've been wearing the waist clincher for the last two years. I purchased a new one recently and it's not the same type of material of the previous ones i've brought. I thought maybe because i had lost weight, so i brought a smaller sizer, but that one didn't fit the same either. I thought i found a miracle when i first purchased the girldle through Amazon, but i have found my recent purchase has surely let me down...
Negative