Where to buy food insulator bag that protects both hot and cold food?

I only find bags and containers that insulate cold food from the environment at Walmart, Canadian Tire, Bass Pro Mills, and Kitchen Stuff Plus. I have yet to visit Rona, Lowe's, or Costco because they're not within my vicinity. I do have a Home Depot near me, but I'm not sure if they even sell insulator bags or containers. I may buy from Amazon or from Uber themselves as a last resort(s). I am from the Toronto area in Ontario, Canada if that helps with suggesting which stores to visit.