The lug-a-mug practice hasn't seemed to have caught on quite like the environmentally conscious had hoped. The O'Cha Tea Capsule caters to the fact that people appear to be much more accustomed to carrying canteens around than portable coffee mugs.
This concept is a hybrid water bottle and tea infuser that can still be used simply as the former. Should you want a hot or an iced tea, however, a few easy steps will prepare you for a fresh brew just about anywhere.
Basically, take any standard plastic water bottle and swap its cap out for the O'Cha Tea Capsule. In this, you will have stored a lovely blend of loose leaf. Once the little filtering doodad has been attached, just shake the container and you'll have a beautifully flavored beverage.