😊SMART DESIGN - 2pcs in one package, our designs create a bright new looking for your expensive Stanley flask. Warning: silicone boot only, flask water bottle is excluded. 🌟Snug fitting--Our Silicone boot was designed for Stanley Adventure Quencher 40oz and Stanley IceFlow 20oz 30oz Tumblers (Boot Size: 2.83inch bottom diameter, 1.89 inch high). Note: this flask sleeve is also ok for Yeti flask, Hydro flask wide mouth 12-24OZ and more brands flask which diameter is 2.83inch. 🌟BPA FREE - Made of high quality food grade silicone material, feel safe to take it as a dog bowl on-the-go activities. 😊PORTABLE TO CARRY – Reusable, washable and foldable. Our sleeve can withstand stretching, folding, and anything life throws at it. 😊 SATISFACTION GUARANTEED – Buy with confidence! You are assured to get the products as described and get the quick/easy customer service by writing or talking to us directly. Smart design:-Made of Anti-slip, BPA free silicone material -Stealth landing: Soft silicone bottom sleeve to prevent your bottle from bumps,dents and dings. -Special design to crate a new looking for your favourite flask SATISFACTION GUARANTEED:-Buy with confidence, 100% satisfaction or 100% money back with our easy/quick after-sale service support by writing or talking to us directly.