Doshisha Sub-Zero Mug, 450ml, Vacuum-Insulated + Cooled, Triple-Layered Construction, Gold, ON℃ZONE

Pour a drink into a mug frozen in the freezer and it will instantly drop below freezing. Pour a drink into a mug frozen in the freezer and it will instantly drop below freezing. Uniquely developed vacuum + cooling triple-layer structure. Vacuum insulation keeps drinks cold. Built-in refrigerant keeps drinks ice-cold. Experience unprecedented coldness. Sub-freeze beer, sub-freeze highball, and sub-freeze chuhai. Size (approx.): W 115 x D 89 x H 151 (including handle), 89mm diameter Brand: DOSHISHA