Swig Slider Lid

This lid is specifically engineered for Swig tumblers and Mega Mugs with a 4-inch diameter. While it may physically fit other brands with the same dimensions, we recommend it primarily for Swig drinkware to ensure a secure, leak-resistant seal.

The slider is designed to be splash-free, which helps prevent accidental spills during normal use. However, it is not 100% leak-proof if the cup is tipped over completely or submerged, so it is best to keep your tumbler upright.

Yes, the lid features a straw-friendly opening that accommodates most standard-sized reusable straws, including metal, silicone, and plastic varieties.

The lid is top-rack dishwasher safe, which is the easiest way to keep it clean. For a deeper clean, you can gently pry the slider piece off to wash the underside and the gasket area thoroughly.

The push-seal silicone gasket is durable, but like any rubberized component, it can degrade with heavy use or high-heat dishwasher cycles over several years. To extend its life, we recommend hand washing the lid occasionally.