Form rarely follows function in the world of travel mugs. They are either too big or too small, or the spout is too narrow, making drinking a delicate act and effective cleaning nearly impossible. However, we found one we liked. This elegant version from Kinto, which holds approximately 12 ounces, is both smartly designed and aesthetically appealing. We especially like the sip top underneath a secure screw-on lid, making leakage during transport impossible.