Permanent fabric markers. Brush tip for fine lines, bold strokes, and shading. Bold colors for optimal performance on most fabric surfaces. Resists fading on most fabrics during normal wash cycles. Customize canvas backpacks, fabric sneakers, t-shirts and more. To get the most out of your permanent markers, store them in a horizontal position and always put the cap on after use. For best results on fabric, machine wash in cold water and hang dry.