Surfrider Foundation 16oz On The Go Bottle. Stay hydrated and help keep plastics out of our oceans with this reusable bottle from Nalgene. This 16 oz bottle is made from BPA-free Eastman Triton TM copolyester. Screw top cap attached. New Surfrider logo print. Measuring scale printed for ez see suppluments and recipes Dishwasher safe. Made in the USA. Surfrider Foundation.