Silipint Silicone 32 Oz Straw Tumblers: With a Silipint Straw Tumbler in hand, you can go where no other drinkware can…everywhere. That s because our tumblers are made from naturally occurring silica: a durable, non-toxic material that is flexible, durable, and can handle the heat. So go ahead, take this tough-as-nails tumbler anywhere and put it to the test - whether it's iced coffee, hydration on the go, a refreshing smoothie, or an extra thick milkshake, this 22oz unbreakable companion never takes a break so you never miss a moment. Silipints are safe for the microwave, dishwasher, freezer and more. They can hold hot and cold beverages, they're durable, eco-friendly and will never wear out. Avoid spills with the insane no-slip base. Silipints will not break, crack, chip, dent, fade or scratch.Silipints are safe and built to last, made of 100% food-grade, platinum-cured silicone that is free of chemicals