15 oz Matte Finish Bistro Mugs. The Sorbet Bistro coffee mug is a matte cup that has a sorbet colored matte body and a glossy interior. These imprinted coffee mugs make great end of the year teachers gifts and corporate giveaways. The custom cups can be imprinted with a simple slogan like "We appreciate all the hard work you do" and given away as a staff appreciation gift. When you buy them factory direct from salinaglass.com, no one ever has to know that you saved 40-50%.