It is made of 304 stainless steel, which is durable, electro polished on the inside to ensure your cups remain rust-free, and colored powder coated finish on the outside make it super easy-grip. the shape is like the Can. Comes with a reusable straw to help you stay neat. Our tumblers use sweat-free design which prevents sweating and condensation, making sure it never leaves a spot and you never burn yourself again!