This Versatile Vessel Pulls Its Weight Around The Fire, Keeping Coffee Warm Until The Last Sip And Beers Cold Until The Keg Is Tapped. The Cup Holder Friendly Rambler® 20 Oz. Stackable Cup Comes With The Splash Resistant, Magslider™ Lid To Protect Your Beverage While On The Go. Like The Entire Rambler® Family, It’s Over Engineered To Survive Extreme Adventures And Double-Wall Insulated So Your Beer Is Ice Cold Or Your Coffee Is Hot From The First Sip To The Last.