Klean's Sport Cap features a soft silicone spout and improved valve, with all the features you love; dishwasher safe, attachment loop, and one-handed operation— adding quieter performance, better leak resistance and 25% higher flow rate. Available on single-wall Classic and Kid bottles as well as accessory for Insulated Classic. Our Chug Cap for TKWide is also great for easy and quick hydration on the go.