Shop All YETI Enjoy a hot drink without worrying about spills or splashes with YETIs Rambler MagSlider Lid. Unlike other slider lids, the MagSlider uses the power of magnets for smooth opening and closing. The crystal clear lid makes it easy to see if youre in need of a top-off. Also makes for easy cleaning you can pop the MagSlider off, rinse, dry and return it to the lid. Spill-resistant, shatter-resistant and BPA-free. Sizes: 10/20 oz., 30 oz.