Insulated travel mug with a handle that holds about 18 oz and keeps beverages cold for at least 6 hours and hot for at least 8 hours...or close.
This is my current favorite: http://www.amazon.com/Chantal-SL92-T-15-Ounce-Travel-Stainless/dp/B004KPKSP8/ref=wl_it_dp_o_pC_nS_nC?ie=UTF8&colid=4QD7RJASST6M&coliid=I3EY1KSPL6AWF6
It's not dishwasher safe and has a lot of little parts, but it insulates very well.
Other than the handle this fits the bill. http://www.gocontigo.com/autoseal-aria-stainless-steel-travel-mug-20-oz.html
The Contigo mugs are the best I've found as far as not spilling, very easy to drink from, and the lid can even go in the dishwasher.
This is my absolute favorite because you can bang it around and nothing spills. It's only 14oz but the same brand has other models that are bigger. http://www.amazon.com/gp/product/B00004WHWV/ref=s9_hps_bw_g79_ir13?pf_rd_m=ATVPDKIKX0DER&pf_rd_s=center-3&pf_rd_r=0PE3WRB7NSNNJ6FQT5XP&pf_rd_t=101&pf_rd_p=150311142&pf_rd_i=297573