So long single-use straws. The Hydro Flask Stainless Steel Straw Set delivers two reusable straws and a straw cleaning brush for use with anything you'd use a straw for. Crafted of 18/8 pro-grade stainless steel and a BPA-free mouthpiece, the straws collapse when not in use for quick storage. These are easy to clean and easy to use over and over again.