Hydro Flask, known for its sports bottles that keep warm, also knows how to make thermos mugs. Although the volume of this mug is a whopping 7.1 dl, its lower part is shaped to fit standard mug holders. - Main material 18/8 series stainless steel: tasteless, odorless, easy to clean, does not release chemicals into the drink - TempShield double wall construction keeps drinks hot or cold - High-quality Color Last powdercoat protects the steel - Flexible straw: you can drink from the mug without having to tilt it - Strong handle - Compatible with Large Press-In Lid accessories - Machine or hand wash - BPA-free Thou shalt not put this mug on astove, in the microwave or in the freezer.