Edited September 24, 2017
at 06:58 AM
Walmart has a Ozark Trail 30-Ounce Double-Wall, Vacuum-Sealed Tumbler for $5
This 30-ounce travel tumbler is made with high-grade 18/8 stainless steel, and is double-walled and vacuum-sealed for maximum temperature control, so it's equally suited to sustaining the temperature of both hot and cold beverages. Featuring a durable, rust-proof and sweat-free design, this stainless steel tumbler is BPA-free and comes with a lifetime warranty.
Available at Jet.com
as well in dark blue, robin egg blue, dark red, orange - all $5