Put a lid on it! The Hydro Flask 32 Oz. Tumbler Straw Lid is the perfect addition to your Hydro Flask Tumbler, providing additional insulating capabilities while reducing the potential for spills at the same time. This straw lid is dishwasher safe for easy cleaning, and is BPA, Phthalate, and Toxin-free for your ultimate safety. FEATURES: Suitable for 32 oz. tumbler Helps reduce spills and keep beverages cold Dishwasher safe BPA-Free Phthalate and Toxin-Free Lifetime Manufacturer Warranty Style: TXSW.