Compatibility: Specially designed for Hydro Flask Press-In Straw Tumbler Lid. Fits snugly on 0.35–0.4 inch (9–10mm) straws to help block dust and keep your drink cleaner
Safe & Soft Silicone: Made from food-grade silicone. Odorless, flexible, and durable—safe for all ages without cracking or deformation over time
Dust Protection On the Go: Our straw stoppers can effectively blocks dust, dirt, and small insects from entering, ensuring a clean drinking experience with the straw, whether in the gym, office, or camping site
Effortless Maintenance: Dishwasher-safe reusable stoppers remove easily for cleaning. Washes like new for long-term use with no residue or wear
Colorful & Personalized: Features 8 fun dust proof 10mm silicone toppers in vibrant colors to match your tumbler style—ideal for home, office, outdoor use, or as small thoughtful gifts
