Insulated Water Bottle (20oz) The Flip + Sip Cap is a gamechanger for our classic 20oz Bottle. Drink on the go with the help of the easy carry handle and inner straw! All of our prints are hand applied therefore slight variations will occur. Premium Temperate Retention Triple Insulated Technology: Double Walled, Vacuum Sealed, and copper plated insulated water bottle with thick, professional grade 18/8 stainless steel. Cup Holder Friendly Skinny water bottle fits most standard car cup holders. Water bottle base measures 2.75 inches in diameter. Built in Coaster Scratch-free, noise-free silicone base keeps your travel water bottle from tipping over or making too much noise when you set them down.