THE PERFECT FIT - Available in 2 sizes, our Silicone Boots are compatible with your favorite Tumblers - Owala Free Sip, Stanley Quencher, YETI Rambler, Hydro Flask Wide Mouth & Standard Mouth, & more! NO DENTS OR DINGS - Protect your stainless steel water bottle from bumps and bruises with our bright and protective Boots! A cute rubber bumper to keep your waterbottle safe and your mind at ease. BRIGHT COLORFUL PATTERNS - Express your personality by adding a touch of vibrance to your tumbler. Our Boots are for those who want to add a pop of personality and color to their everyday routine. TOP QUALITY - Crafted from premium BPA free, non-toxic Silicone, our Bumper Boots ensure your peace of mind. Plus, they're easy to clean and hassle-free to put on with a strategic vented air outlet. HAPPINESS GUARANTEED - We've got your back! If you have questions about our products, feel free to reach out to us anytime. We're here to provide you with a solution that leaves you truly satisfied! Made from high-quality silicone, our boots are not only practical but also incredibly fun and vibrant, allowing you to express your personality with your favorite tumbler. Whether you're hiking, camping, or just out and about, you can rest easy knowing your tumbler is safe and sound in its colorful silicone boot. SLIM SIZE - (bottom width 2.8"-3"): Stanley Quencher - 20oz, 30oz, 40oz Stanley IceFlow - 20oz, 30oz Hydro Flask - Fits All 12-24oz Bottles YETI Rambler - 12oz, 18oz, 20oz, 30oz Owala FreeSip, Twist, & Flip - 24oz Simple Modern Classic & Trek - 20oz, 24oz, 28oz, 30oz, 32oz, 40oz Simple Modern Summit - 18oz, 22oz Iron Flask - Fits All 12-24oz Bottles Klean Kanteen - Fits All 12-27oz Bottles Nalgene - Fits All 12-24oz Bottles Takeya Actives & Traveler - 14oz, 16oz, 17oz, 18oz, 22oz Takeya Originals & Tritan - 14oz, 18oz, 24oz ThermoFlask - 14oz, 16oz, 18oz, 24oz WIDE SIZE - (bottom width 3.4"-3.6"): Stanley - NONE - please purchase SLIM SIZE for all Stanley Tumblers Hydro Flask - Wide Mouth (32oz, 40oz) Owala - FreeSip, Twist, & Flip (40oz) Simple Modern Summit - 32oz, 40oz Iron Flask - Fits All 32oz-40oz Bottles Klean Kanteen - Fits All 32-40oz Bottles Nalgene - Fits All 32-48oz Bottles Takeya Originals & Tritan - 32oz, 40oz ThermoFlask - 32oz, 40oz