Choose the range, not the single glass
With Arcoroc, choose a range first, because within a range the same silhouette runs through every size. Islande is the widest: a 6.5 cl shot glass, tumblers of 20 and 30 cl and long drink glasses of 22, 29, 31, 33 and 36 cl. If you are laying up a terrace or a function room, that single range covers the whole menu without the table looking untidy.
Norvege is fully tempered and the most robust, Salto and Log have a thicker base and more weight, Granity goes up to 65 cl for large long drinks with plenty of ice, and Brio covers the finer end with flutes of 9.5 and 16 cl and a 20 cl coupe. Arcadie and Broadway sit somewhere in between in shape. When ordering, also check stackability: the Islande tumblers stack, not all the long drink glasses do, and in a cupboard without much height that matters more than you would think.