The Best Straw Lid: The Simple Modern straw lid creates an easy, comfortable drinking experience. The nozzle flips open to drink from and closes creating a leak proof experience. Even with the drinking nozzle flipped open, the lid is splash proof. The handle makes for comfortable two finger carrying. Fits All Simple Modern Summit & Wide Mouth Hydro Flask Sizes: This lid fits the Simple Modern Summit and wide mouth Hydro Flask 10oz, 12oz, 14oz, 16oz, 18oz, 20oz, 22oz, 24oz, 32oz, 40oz, 64oz and 84oz water bottle sizes. Double-Wall Insulation: Combine the Straw Lid with the Summit bottle for added double-walled insulation. This lid is leak proof and dishwasher safe. BPA Free: This lid is made from BPA free polypropylene for safe, reusable use. Why Simple Modern? The S|M logo stands for more than premium drinkware. At our core, we believe that relationships are more valuable than profit. Generosity is one of our two core company values. We give a minimum of 10% of our profit away and have been able to donate product to natural disaster causes. Simple Modern products are all reusable, reducing waste in our landfills. Our products are designed to simplify your life, empowering you to be a positive impact on the people around you.