Comfortable to use. Made of high-quality, extremely soft-touch silicone material, it's completely safe even for sensitive skin. It won't cause irritation during prolonged use or physical exertion. Whatever you do, enjoy freedom and comfort! Upgrade to the Yesido Silicone Watch Band. Perfect fit. No matter which Apple Watch model you own, we guarantee that the Yesido Silicone Watch Band will fit perfectly.