KEEPS COLD. With double-wall vacuum insulation, Meoky 40 oz tumbler with lid and straw stays cold for 34 hours and hot for 10 hours. ENJOY 2X. With DUO 2-in-1 & 100% leak-proof lid, Meoky tumbler with handle allows you to flip the straw lid to drink iced coffee and the sip lid to taste hot tea. BE INCLUSIVE. With double thread, the screw-on lid lines up in a way that allows lefties and righties to hold the handle while drinking. FITS FINE- both hands and cup holders. Wide and thick handle helps with comfy grip, and offers relaxation by less pressure on finger joints. RELISH MORE. Featuring 40oz capacity, Meoky insulated coffee tumbler holds much liquid. Just bring your go-to drinking vessel when climbing mountains and going camping.