Calvin Klein Sneakers Wore Out in 3 Months

The inner side of my Calvin Klein sneakers, which I purchased in March, wore out after just three months, and the inner fibers started spilling out. I sent the product to the company for inspection twice, but both times I received a negative response. They claimed I had used the shoes carelessly. However, I wore them less than 10 times in total over those three months. I always store my shoes properly and take care of them, so the damage makes no sense to me. The product comes with a 2-year warranty. I wear them on the street—it's not like I'm wearing them to formal events; they’re sneakers, after all. I will file a complaint with the Consumer Arbitration Committee. They refuse to stand behind the product they sold.