Hydro Flask ステンレスボトル『SEMI FORMAL』

The item you've mentioned appears to be a Hydro Flask stainless steel bottle, specifically from a line or collection called "SEMI FORMAL." Hydro Flask is known for its high-quality insulated bottles and containers, designed to keep beverages hot or cold for extended periods.
If you're looking for specific information about this product, such as its size, features, or where to purchase it, you might want to check Hydro Flask's official website or authorized retailers. Alternatively, if you have any other questions about Hydro Flask products or need assistance with something else, feel free to ask!