A Steel Coffee Mug With A Straw Is A Versatile And Durable Choice For Enjoying Hot And Cold Beverages. Here'S An Overview Of Its Features And Benefits.Stainless Steel: Food-Grade, Rust-Resistant, And Highly Durable.Often Double-Walled And Vacuum-Insulated For Temperature Control.Comes With A Reusable Straw, Often Made Of Stainless Steel Or Bpa-Free Plastic.Some Mugs Include A Silicone Tip For Comfortable Sipping.Straw Fits Through A Designated Lid Opening To Minimize Spills.Keeps Beverages Hot For 6