Choosing by grape and by range
Start with what you drink most often. For a full-bodied red you want a large bowl that gives the wine room: a Cabernet or Merlot bowl in the Vinum range runs up to almost 100 cl, while you pour no more than 15 cl into it. White wine and riesling come into their own in a narrower bowl of around 40 cl, which holds on to the freshness. Pinot noir, by contrast, gets a wide, rounded shape that captures the finer aromas.
Then you choose the range. Veritas is thin-walled and machine-blown, light in the hand and meant for daily use. Performance has a light optic in the bowl that increases the contact surface. Veloce is the slimmer, taller line. If you are after glassware for the bar rather than wine glasses, Drink Specific Glassware is the range designed with a bartender, with rocks, neat, fizz, highball and nick and nora side by side. Everything is lead-free crystal glass.