【Universal Compatibility】Fits perfectly on Stanley Quencher 30/40oz, Stanley IceFlow 20/30oz and Hydro Flask Wide Mouth 12, 16, 18, 20, 24oz bottles with bottom diameters ranging from 2.8 to 2.95 inches, offering a snug and secure fit 【Effective Noise Reduction】The soft silicone material acts as a cushion, significantly reducing the noise when the bottle is placed on hard surfaces or bumped into other objects, making it ideal for use in quiet environments 【Safe and BPA - Free Material】We prioritize your health. This silicone sleeve is made from non - toxic, BPA - free materials, ensuring that it won't contaminate your drinks and is safe for daily use 【Stylish Meets Protection】：Not only does it offer practical functions, but the trendy leopard - print design also adds a touch of style to your bottle.DIY your cup with this leopard silicone boot. Elevate Your Tumbler's Style with This Fashion-Forward Protective Sleeve! 【Quick response】 Before purchasing, please confirm the size of the tumbler's bottom,If you are unsure if it is a match or have any questions about the products you receive, please feel free to contact Prurex to ensure a pleasant experience Silicone Boot for Stanley