FITS MOST CUP HOLDER: Perfect size T-shape 40 oz tumbler with sleek and narrow bottom design snugly fits in most cup holders for easy portability, you can drink it safely while driving. Tumbler comes with lids and straws has ergonomic handle, so you can easily hold the cup, not easy to slip from the hand, easy to carry wherever you go! DOUBLE WALL INSULATED: This 40 oz tumblers with a double wall vacuum insulation design, it's served with 304 food-grade stainless steel, no rust, break resistant, keeps your morning coffee steaming hot into the afternoon, or keep cold drinks refreshingly chilled for all day, you can use it in any season. No condensation and easy to clean. SPLASH-PROOF LID DESIGN: 40oz tumbler with a splash-proof lid, that equipped with a silicone ring prevents splashes, which can keep any dust particles getting in and stop major spills, never worry about bumpy commutes leaving your car a liquidy mess! You can snugly grips each straw, or use the rotation feature to open the spout for faster drinking! WIDE MOUTH AND LARGE CAPACITY: 40 oz cup with a wide mouth design, which not only offers you a comfortable drinking experience, but also easily put coffee powder, ice cubes, or fruits, which is also easier to clean later on. The 40 oz large capacity keeps you hydrated throughout the day, reduce the number of refills, saving you valuable time.