Nathan Push Pull Cap-Pack of 4</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Push-pull caps-4 pack</li><li>Fits all 8 oz， 10 oz， and 18 oz Nathan flasks. Soft-sip cap gives you easy access to fluids. Soft-sip nozzles designed for greater comfort when drinking on-the-go</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/31D29QbqkqL.jpg' noproxy></br>