Our 40oz wide mouth size straw lid bottles are great for those times when you want to quickly be able to take a drink without removing your lid! ideal for sports activities, and hikes, or for colder weather when you are wearing gloves!! the wide mouth size of our 40oz bottle makes makes it simple to add ice cubes to keep your favorite beverages colder, longer. And with our custom designed straw lid, you know you will get a perfect seal every time which not only prevents accidental spills, but helps to keep your cold drinks cold longer, and your hot drinks hot longer.