Forty ounces of cold that lasts all day. The Butter Water Tumbler keeps your drink ice cold from the first field check to the last — insulated stainless steel, leakproof twist lid, and a narrow base that fits the cupholder in the truck.
 
Specifications:
* Capacity: 40oz
* Material: Insulated Stainless Steel
* Flip-up handle on lid
* Twist-on lid, leakproof
* Narrow bottom — fits in cupholder
* Comes with 1 straw