The YETI RAMBLER 20 OZ TUMBLER glass is made of stainless steel to withstand the shock of all your future excursions or travels, because yes, it's important to protect every one of your favorite beverages.
The double wall vacuum insulation keeps your favorite beverages warm or cool. This container features aMagSlider lid that quickly spills.
Note that it is not leak-proof but adds a protective barrier to keep drinks inside and prevents heat or cold from escaping.