I wore these indoors. I purchased them about two years ago, and there is some peeling on the zip flap. There are no cracks or peeling on the surface enamel. Pleaser SEDUCE-3000/R Pleaser thigh-high boots over-the-knee long boots knee-high boots Stretch long boots Color: Enamel Red Approximately 12.5cm heel Approximately 76cm total length (including heel) These are over-the-knee long boots from the American manufacturer Pleaser. They have sexy stiletto heels and a design where the opening is cut diagonally. They are made of stretch material, but the stretch is only enough to support movement, so it doesn't significantly affect the size selection. The surface is a glossy red enamel.