If you're picking up Ring Fit Adventure, you might be looking to use it to lose some weight. I certainly know that's why I'm giving the game a go. While the included Ring-Con works for people of all shapes and sizes, the leg strap is a different story. Nintendo has stated that the Joy-Con leg strap will work with a thigh as small as 34cm, and a thigh as big as 70cm. I don't even want to measure my thigh...so I guess I'll find out where I stand when I open the game!