Why this tumbler earns its place
The single old fashioned is the thinking person's spirit glass. At 260ml (9oz), it's a proper measure for a single pour of whisky or bourbon—enough for a genuine drink, not enough to overcall. The 90mm height and 86mm diameter make it compact and elegant, the kind of glass that fits naturally in hand and reads as intentional on the table. This is the glass for drinks where the focus is the spirit itself, not volume.
Onis built the Inverness range for bars where glassware durability is a line-item cost. The Xtratuff treatment hardens the glass against thermal shock and mechanical impact. Every cycle in the dishwasher, every ice-fill, every temperature swing—these stress standard glass. Xtratuff-treated glass doesn't break down the same way. A venue using standard old fashioned glasses replaces them every 18–24 months. Venues using Xtratuff glasses extend that to 36 months or longer. The maths is simple: fewer replacements, lower stock costs, less downtime hunting for clean glasses during service.
Visually, Inverness maintains its restrained aesthetic. The glass looks and feels substantial without being showy. The weight, the proportions, the clean lines—these signal quality to customers without requiring any explanation. Pair it with a premium spirit and the glass disappears; all the customer notices is the drink. Dishwasher safe, high-cycle safe, built to survive.
