Polycarbonate is virtually unbreakable in normal usage.

Dishwasher safe and reusable they are very rigid and will withstand up to up to 300 uses without showing signs of wear and tear.
CE marked Pint to brim - Polycarbonate
Polycarbonate product can be sterilised & will withstand temperatures up to 145°C. PC is resistant to oil, dilute acids, alcohol and it is flame retardant.
They are stackable, so ideal for the busy bars.