These three specific capacities—230ml, 380ml, and 470ml—are the standard sizing options for the trending minimalist borosilicate square highball drinking glasses. Because they are crafted from heat-resistant borosilicate glass, all three sizes can safely handle both ice-cold beverages and boiling hot coffee or tea. Here is how these three sizes translate into everyday practical use: Square Glass 230ml (~7.8 oz) — The Lowball / Juice Glass The 230ml capacity is the smallest size in this geometric family, making it perfect as a short tumbler or rocks glass. • Best Used For: Serving neat spirits, whiskey on the rocks, morning fruit juices, espresso shots, or small portions of milk and water. • Design Profile: It has a compact, stubby square profile that sits comfortably in your palm and takes up minimal vertical shelf space. Square Glass 380ml (~12.8 oz) — The Medium Everyday Tumbler The 380ml capacity is the highly popular middle-tier option, widely favored as an aesthetic everyday glassware staple. • Best Used For: Standard iced coffee, matcha lattes, canned beer pours, sodas, and mixed cocktails. • Design Profile: This size strikes the perfect balance between height and volume. It is also the size most frequently paired with a side handle to be used as a modern glass coffee mug. Square Glass 470ml (~15.9 oz) — The Tall Highball / Pint Glass The 470ml capacity is the largest variant in the lineup, closely mirroring the capacity of a standard 16-ounce American pint glass. • Best Used For: Large iced teas, breakfast smoothies, boba, large protein shakes, or generous pours of water to track daily hydration. • Design Profile: This is a true highball glass with an elongated, tall square silhouette. It is highly visually appealing for creating multi-layered drinks (like milk, espresso, and foam layers).