The Straw Lid is made of high-quality material and does not contain BPA.
FUNCTIONAL DESIGN: The Iron Flask straw lid is easy to carry and drink from. It can also be used as a straw lid or a sports lid (without attaching a straw). Not for Hot Liquids as pressure may build within the bottle causing leakage
COMPATIBILITY: Replacement Flip Lid Wide Mouth
IRON FLASK STRAW LID PACKAGE INCLUDES: 1 Lid replacement
STAYS ON TIGHT: Avoid having to worry about leaking liquids! Our lids will stay firmly secure to your favorite water bottle!