Perfect Fit for 30-40oz Stanley Tumblers, Snug, Secure Bottom Protector. This silicone boot is precision-molded for a flawless, second-skin fit on Stanley Quencher H2.0 30oz & 40oz, IceFlow 20oz & 30oz, and most tumblers with a 2.9–2.95 inch base. The stretchy food-grade silicone grips securely—no slipping off like cheap tumbler boots. A reliable bottom protector for your favorite 30oz 40oz tumbler.

Anti-Slip & Shock-Absorbing Base,Stops Dents, Drops & Sliding. Tired of dents and sliding cups? This thick, durable rubber bottom protector acts as a shock-absorbing tumbler boot. It shields against drops, dings, and scratches, while the textured anti-slip base keeps your cup firmly in place on car dashboards, desks, and gym benches. Essential cup accessories for everyday protection and an ideal Stanley accessories upgrade.

Noise Reduction for Quiet Spaces,Eliminate Loud Clanking.Our soft silicone sleeve absorbs impact and dramatically muffles noise every time you set your cup down. This noise-reducing tumbler boot cover creates a peaceful, quiet environment—perfect for offices, late nights, and early mornings. A must-have water bottle boot for serene sipping anywhere.

Premium Food-Grade Silicone,Safe, Durable & Dishwasher Safe. Crafted from BPA-free, odorless food-grade silicone, this silicone boot for Stanley tumbler is safe for all ages. It resists heat, keeps its shape, and cleans effortlessly in the dishwasher. A long-lasting bottom cover that makes your daily hydration healthier. The perfect tumbler accessories for clean living.

2-Pack Value & Wide Compatibility,Mix, Match, Gift & Share. This set includes two tumbler boots—keep a spare in your car, gym bag, or camping gear. Mix colors to personalize your tumbler collection. Precision-molded to also fit for Hydro Flask 12-24oz,for Owala 40oz, and other popular bottles with a 2.9–2.95in base. An ideal gift for tumbler lovers and a practical addition to your cup accessories set.