Our warehouse suite were all of our stock is stored suffers extreme heat in the summer months, and we have noticed this year that the vinyl on these boots is beginning to break down. Please refer to the photos we've included of the hot pink boot. You can see some tiny wrinkles in the vinyl. This is the beginning of the breaking down of this material. The more that they are worn, the more that they will stretch, and the vinyl will eventually begin to pull apart. Wearing for a one time event should be fine, this is why we are offering them at a reduced price, plus shipping.