Energy-Boosting Gifts When the shift begins, it can be difficult for C Developer find time to prepare something energizing, such as a cup of tea or coffee that is kept warm or cold at all times. This tumbler cup with its meaningful message is a thoughtful way to help any dedicated C Developer in your life enjoy her favorite drink and be more productive on her busy shift.. Humanized Design Our funny C Developer SS Curved Tumbler 20oz is designed with a straw and a removable straw lid. You can open the lid with one hand, which is convenient for you to drink water, cocktail or coffee. The straw lid is designed with a silicone ring, which can effectively prevent water from flowing out and ensure the safety of drinking.. Maintains drink temperature This insulated coffee mug features a double-wall insulated design that keeps your hot drinks hot and cold drinks cold for hours Plus, our insulated tumblers are also sweat and condensation proof so that your hands stay dry. It's the perfect travel coffee mug for your favorite latte, cold brew, tea, soda or water.. Spillproof lid Our insulated coffee tumbler includes a premium spill proof lid that keeps your drinks where they belong - in your cup The slider design can be used with or without a straw and is easy to sip while you are on the go.. Travel friendly This coffee travel mug fits in most cupholders so you can take your iced coffee or tea with you wherever you go. It's the perfect mug for work, school, and travel. Plus, since it is reusable, this iced coffee tumbler is eco-friendly. A stainless steel insulated cup is a great earth-friendly alternative to single use disposable coffee cups..