Shop Name: Amazon.com
Promotion: 24% OFF! Only at US$22.72 (U.P. US$30)
Shipping: Eligible for FREE Shipping to Singapore with minimum purchase of US$125
Customer Review from Amazon:
As for the button sticking (complaints in other reviews)... I take iced coffee in it everyday. My coffee has cream and coffee syrup in it - its sticky. When the button got sticky (only once), I soaked it in a cup of hot soapy water and it was fine within 15 mins.
Another wonderful feature is that it will fit in a standard car cup holder. I drive an older car (14 years old) and the cup holders are very narrow... this bottle fit perfectly...
I can't say enough wonderful things about it... get yourself one. You won't be disappointed. I LOVE mine.