Introducing the CHAKO LAB Dual-Layer Tumbler. a versatile 2-in-1 hydration solution designed for modern lifestyles. This innovative tumbler features a detachable dual-layer structure: a 570mL high borosilicate glass inner cup for brewing teas. coffees. or cold infusions. paired with a 600mL 316 stainless steel outer cup for superior insulation (keeps beverages hot for 6 hours at ≥38°C or ice intact for 24 hours). Perfect for home. office. or car use. its 75mm diameter ensures compatibility with most cup holders.

The set includes two interchangeable straws (wide flat straw included) for sipping convenience and easy cleaning. The food-safe PP lid/straw and 316 stainless steel construction guarantee durability and health safety. With a sleek dimension of 112×106×215mm. this tumbler combines portability with a 1.170mL total capacity. Ideal for health-conscious users. it's your year-round companion for hot teas in winter and iced drinks in summer.