- Heavy-duty, food-grade 1mm stainless steel
- Steel-lined pour-through stopper ensures no plastic contacts your beverage
- Insulated stainless steel-lined cap doubles as a cup
- BPA-free and FDA-approved
- Dishwasher-safe
- Exclusive Filson-designed graphics
- Stainless steel + plastic
- Dimensions: 3-1/2"L x 3-1/2"W x 12"H
- Capacity: 0.75 L (25-oz.)
- Rinse after use, machine wash as needed
William Stanley Jr. forever changed the way drinks were kept hot with his 1913 invention that combined the strength of steel with vacuum insulation. In the Master Series, Stanley ups the ante with 1-mm thick 18/8 stainless steel for the ultimate in rugged durability and maximum insulation. This stainless steel alloy traps no flavors, so your beverage will always taste like it should.