Klean Kanteen Unisex Sport Cap 3.0 for Classic Bottles, Black, Medium is available in Sippy Cups

It may look somewhat familiar, but don't be fooled. Klean Kanteen have completely re-designed their sport cap with a soft silicone spout and better valve. The results are impressive: quieter performance, better leak resistance, 25% higher flow rate, and more comfortable to swig from. They've kept all the features you love; dishwasher safe, attachment loop, and one-handed operation. Features: Soft silicone spout delivers 25% higher flow rate Relief valve is "chirp" and "whistle" free Quick attachment loop Cap is leak resistant No BPA, phthalates, lead or other toxins Interchangeable with all Kanteen® Classic sizes Dishwasher safe