Our mugs are suitable for both indoor and outdoor events. You can drink while driving, staying at home, in the office, or on the patio, lake or beach, at a party, on a tourist trip, cabin trip, camping, hiking, picnic, and more. Give a sentimental gift to your beloved ones, family and friends on holidays, birthdays, Christmas, Mother's Day, Father's Day, Valentine's Day or any occasion. Inner layer 304 stainless steel outer layer 201 stainless steel, cover PP. Good sealing, even if inverted, will not make the liquid leak out. Keep warm and cold for hours. One button to open the lid of the cup, easy to drink. Good heat preservation, easy to carry, the material is environmentally friendly, odorless, BPA-free, the lid has an invisible lifting ring design, you can pull it out when you use it, and you can put it away when you don't use it. The bottom of the cup is non-slip design, placing more stable. Ideal for outdoors, sports, commuting, camping, etc.