Safety Notice: We have just received the Newly Designed Sport Cap 2.0! If you have purchased a Klean Kanteen Sport 2.0 prior to May 2010, please go to the following link for more information on the Klean Kanteen Safety Notice. Features:

• New rapid flow spout
  
• Quick attachment loop
  
• BPA Free
  

NOTE: The Klean Kanteen Sport cap is not leak proof
Creating a sport cap that delivers effortless flow on a bottle that you can't squeeze is exactly the kind of sport cap that Klean Kanteen has developed.
Klean Kanteen's revolutionary Sport Cap 2.0 will flow 3x the flow of the original sport cap. The Sport Cap 2.0 is simply the best sport cap in the metal bottle market.
It is also made to last, just like the bottles. Made from BPA free polypropylene, the sport cap 2.0 also now includes a built-in loop, so it's easy to clip it onto just about anything, especially when coupled along with the new Klean Kanteen #3 or #4 S-biners. Perfect for Hiking, Camping, Biking and other Rugged Outdoors Activities.
All Klean Kanteen caps/lids are interchangeable with all sizes of Klean Kanteen Classic water bottles and only use non-leaching polypropylene (pp#5). The Klean Kanteen KPPS2 sport caps will NOT fit on Klean Kanteen Wide water bottles or the Insulated water bottles.