This straw lid fits all wide mouth Hydro Flasks with a volume of 18/32/40oz. It is made of BPA-free plastic and comes in black color. The lid is designed for easy use and includes a straw for convenient sipping. This product is perfect for those who love camping, hiking, or any outdoor activity. It is also great for daily use at work or on the go. The Hydro Flask brand is known for its quality and durability, making this lid a reliable choice for any adventure. Please see all photos as they are part of the description. Check out my other items. Cross posted.