What does the Chilly's Bottle lid/cap look like and what is it made from? The Chilly's Bottle lid/cap is made from stainless steel, plastic and a silicone o-ring. Photo of the lid below. Have more questions? Submit a request 1 Comments Date Votes 0 Id Afonso July 12, 2017 09:27 Is the chilly bottle lid/cap BPA free? Please sign in to leave a comment.