Product name: Cup Boot for StanleyProduct material: siliconeSize: 7.5*7.5*4.5cm/2.9*2.9*1.7 inchesPackage contains: 1*cup bootFive selling points:1.Enhanced Protection: The Cup Boot for Stanley provides a safeguard against dents, collisions, and scratches, minimizing damage and reducing the noise from metal collisions, ensuring your water bottle remains in pristine condition.2.Versatile Compatibility: Designed to fit Hydroflask 12-24oz, for Stanley Adventure Quencher 40oz, and for Stanley IceFlow 20oz and 30oz bottles, this silicone boot offers broad compatibility, making it an ideal accessory for various water bottle models.3.High-Quality Material: Crafted from soft and stretchy silicone, this cup boot is reusable and offers a snug fit for your water bottle, ensuring it stays securely in place without slipping off easily.4.Easy Installation: Installing the silicone boot sleeve is a breeze - simply ensure the bottle's bottom is clean, then slide the water bottle into the sleeve, squeezing out any air until it fits snugly.5.Perfect Gift Idea: Whether for school, outdoor activities, fitness, home, or office use, the silicone bumper for Stanley cup boot makes for an excellent gift choice. Ensure compatibility with your water bottle model before purchasing to enjoy its protective benefits.