Description Now with the addition of the MagSlider Lid, the YETI Rambler Tumbler is better than ever! Featuring 18/8 reinforced stainless steel, DuraCoat Color Technology, and a magnetic slider, the 30 oz. Rambler Tumbler offers increased ruggedness, durability, and easy use. The MagSlider Lid slides smoothly back and forth, and protects from splashes whether driving on bumpy back roads or hitting some waves on the water.PRODUCT DETAILS:DuraCoat Color Technology is built to last with no chipping, fading or cracking 18/8 Kitchen-grade stainless steel construction for extreme durability Double-wall vacuum insulation keeps your beverage hot or cold No Sweat Design keeps your hands and cup dry MagSlider Lid uses magnets for easy opening and closing, and keeps your beverage cold/warm longer Fits comfortably in your car, boat or truck cup holder Puncture-resistant and rust-resistant for lasting use Lid has a crystal clear and shatterproof design MagSlider magnets pop off for easy cleaning Rambler 30 and MagSlider Lid are both dishwasher safe Compatible with YETI beverage holder Note: This product is not intended to be leakproof and will not prevent spills