At one point, the language on adidas' non-competes stipulated that adidas had 30 days from last day of employment to enforce the non-compete. If that's still the verbiage on new non-competes, on day 31, you could begin working at a competitor and there's nothing adidas could do.
I knew a colleague who was laid off years ago, and a stipulation of this person's severance was that they could not work for a competitor for six months. If they did, they owed adidas the severance money.
Read your non-compete to determine what it says. While adidas may ask you if you leave, you have no obligation to tell them what your plans are... perhaps a bit unethical if you don't tell them, and they could sue you or enforce your non-compete if they believe you violated it.