You are purchasing one 20oz Stainless Steel Double Wall Skinny(straight) vacuum insulated thermal designed tumbler that is good for keeping your drinks warm or cold for a longer time, so this tumbler is good for any season. These tumblers comes with a push-on Tritan lid keep any dust particles from getting in and stops major spills, it comes with a anti-skid silicone bottom and a metal straw and straw cleaner.