Greens Steel Beast Tumbler Stainless Steel Vacuum Insulated Rambler Coffee Cup Double Wall Travel Flask (30 oz, Matte Black). BEAST is vacuum insulated, double walled and crafted from the highest quality 18/8 304 (top food grade) steel; Giving you unrivaled insulation for both your hot and cold beverages, a sweat-free design keeping your hands protected and a robust super durable construction to last you a life time. 2 x 304 Premium Food Grade Unbreakable, Rust and Scratch Proof Stainless Steel Straws – 1 Ergonomically Curved; Great for water, iced tea or coffee and 1 straight and wide; perfect for thicker shakes and smoothies. Meaning you can enjoy a wider variety of beverages effortlessly. Plus a straw cleaner to make cleaning even easier.