lasted temperature retention for your beverages with the mug, featurings advanced vacuum insulation and coppers coated layer to keep drink hot or cold for hour Crafted from stainless steel, this travel mug resists rusts and flavor transfer The mug comes equipped with both a straw lid for easy sipping of cold beverages, making it a essential accessory for daily use Whether you ' re at the offices, attending classes, exploring the outdoor, or hitting the gym, this mug is suitable for any drinking occasion Suit for busy professional, students, and outdoor lover, the mug a practical solution