Personalized Name Name Last Name est 40 oz Tumbler Mug | Slate rtic-20 The Hydration Equation calculates your

The Hydration Equation calculates your daily goal based on personal factors unique to you

Keeps Cold Longer - 10x longer than a standard holder

We designed the 12oz tumblers to fit perfectly in your hand and also in your cup holder

Athletic Heather and Black Heather CVC: 90% Airlume combed and ring-spun cotton

flip-straw lid - Easy-sip straw lid is designed to flip up for sips

Personalized Name Name Last Name est 40 oz Tumbler Mug | Slate rtic-20 The Hydration Equation calculates your40 oz. Double wall, vacuum insulation Dual purpose push on clear lid slider matches mug color Flexible wide silicone straw High quality construction with powder coated finish