Get peak performance with this branded tumbler! Imprinted with your logo, the Summit Thermal Tumbler is made of double wall 18/8 stainless steel and features a 28 oz capacity, copper vacuum insulation for temperature retention, a clear Eastman Tritan push-on lid with thumb tabs and a powder coated finish (patent pending). Each tumbler measures 8″H x 4″W and washing by hand is recommended. Do not microwave.