Instruct: Classify a given Amazon review as either positive or negative.
Query: Valeo Neoprene Waist Trimmer

I have purchased these belts in stores and have been very pleased with them. So I decided to purchase online. The cost was less than in the store and shipping was free. I purchased about 8 of these for myself and for a few of my girlfriends in my exercise class. I wore one right out of the box and the fabric separated from the neoprene (rubber part)when I removed the belt after class. One of my girlfriends told me that the same thing happened to her with one of the new ones I gave her. So, 2 out of 8 so far not happy with. We only wore one time and had to throw away. They felt the same quality as the ones purchased in the store. Not sure what happened to the 2 that tore?? And the others are fine and have even been washed, in a front load washer, air dried. Still very pleased with this product and would consider purchasing again. All in all good product for the price.