You would think that one has money to throw away when you make a video about what’s inside of a YETI cup, but Youtube account "What’s Inside?" answers the questions of what’s inside of every day objects that I’m sure we’ve all wondered about at some point.

They heat tested the YETI up against the RTIC cup by putting them in an oven at 325 degrees, and the RTIC lid melted into the cup of water. The YETI lid melted a bit, but it held up to the heat much better. Of course, this video is for educational purposes only. I wouldn’t recommend putting your cup in an oven.

The YETI cup is manufactured so well that not even a hatchet could penetrate the metal exterior. It took them five minutes to cut the cup in half by using a miter saw.

What's inside of the YETI cup you ask? Apparently it’s just good engineering and a vacuum seal, because a vacuum won't transfer heat, unless it’s through thermal radiation. There was no plastic of any kind inside of the cup. According to someone in the comments, Andy Jones, "There's a vacuum in between the 2 layers to prevent thermal conductivity. Since the bottom is in direct contact with a solid, it conducts the most heat. That's why the gap is larger there.” 

Unless you’re just a nonbeliever, we can now rest our curiosity and rid ourselves of the temptation to spend $39.99 on a cup just to cut it open to see what’s inside.