Keep some Nathan Push Pull Flask Replacement Caps around, just in case. Buy em before you lose em. Soft sip cap gives you easy access to fluids. Designed for greater comfort, for drinking on the go. Dishwasher safe top rack only. Fits all 8 oz, 10 oz, and 18 oz Nathan flasks. BPA free.
Copy the following string into an e-mail to firstname.lastname@example.org to request support.