Sippy cups!

My 20 month old is super picky with sippy cups. He likes these and the nuk rubber spouted ones, but I'm trying to get him away from the nuk. It's super hot right now and by the time we get where we're going, his water is too hot to drink so I want to get him an insulated cup. They no longer make the insulated cup with this top. Does anyone know of an insulated (double walled, preferably stainless) cup with a straw like this or that these tops will fit? TIA ❤