Comfortable to Use: Made of high-quality cotton, 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 your strap to the Yesido Sports Loop Watch Band. Perfect Fit: No matter which Apple Watch model you own, we guarantee that the Yesido strap will fit perfectly. These straps are compatible with you and your Apple Watch.