Stainless steel bottle/tumbler designed by UNIQLO. The lid can be changed, allowing it to be used as either a bottle or a tumbler. Brand new, unused, and comes in an original box. Product Name: Stainless steel portable thermos Capacity: 0.35l Heat retention: 48°C or higher (6 hours) Cold retention: 13°C or lower (6 hours) Thank you for viewing.