haertig,
I think it is this one (at least if you have the 12 oz size).
http://www.amazon.com/Insulated-Green-Th...rds=aladdin+mugThe other sizes are also available on Amazon. Do a search for your size.
The Aladdin has long been a favorite of hikers (lots of them cut the handle off to save weight).
Respectfully,
Jerry
If you really like them, try the 6 pack.
http://www.amazon.com/oz-ThermoServ-Coff...+Thermoserv+mug