What are Chilly's Bottles made from? Chilly's Bottles are made from high-grade stainless steel on both the inside and outside. The Chilly's Bottle lid is made from stainless steel, plastic and a silicon o-ring. Have more questions? Submit a request 1 Comments Date Votes 0 Yvonne Woozley March 07, 2017 20:31 Is the plastic in the lid BPA and BPS free? Please sign in to leave a comment.