Trek Pivot Interchangeable Straw/Chug Lid

Multi-Use Lid: Featuring two interchangeable lid pieces, you can choose your preferred sipping method - straw or chug - and easily swap out the sipping component within the lid at any time.
Insulated: Lid is double-walled, keeping your drink the ideal temperature for hours 
Leak-Proof: Interchangeable Straw and Chug Lids prevent spills and leaks when in the closed position

• Compatibility: Only fits threaded, stainless steel Simple Modern vessels in the Trek Pivot Collection. Fits 30oz - 128oz Trek Pivots and standard Treks. This lid does not fit the Simple Modern Mesa, Summit, Voyager, Classic, or any other brand of drinkware.
• Dimensions: 4.39 x 4.39 x 0.1 inches
• Weight: 8oz