Military Infantry Division design. The design represents the valor and bravery of the 1st Infantry Division, known as The Big Red One, established in 1917. It highlights the division's longstanding history and connection to Ft. Riley, Kansas. This item is an excellent tribute to the significant achievements of a storied military division. Featuring a symbol that has been recognized for over a century, it is sure to resonate with those who hold history and tradition in high regard. Dual wall insulated: keeps beverages hot or cold Stainless Steel, BPA Free Leak proof lid with clear slider