For the price and the claims they make when advertising these, they really need to be made from borosilicate glass (not the cheaper soda-lime, which is easily breakable and prone to shattering even when reinforced).
I purchased two sets of both the short and tall glasses (so 8 of each, 16 total) about 2 years ago. They definitely do break, and I had 2 break in my 6 months of owning them (one of each)… my kitchen floors are wood (so not hard compared to tile) and the first time I dropped one it did bounce, but the second time I dropped one it shattered into a million sliver shards (because it’s soda-lime glass). I also had one mysteriously develop a crack in the dishwasher without any sort of impact; I do not subject these to any extreme hot-to-cold temperature shifts, so it’s really concerning that that happened. Since then, I baby these glasses and am careful about not letting them knock up against anything. Meanwhile I had a set of 2 borosilicate merlot glasses for over 15 years that I dropped on tile well over a dozen times and they bounced without any breaking or scratching. The fable glasses are definitely scratch resistant, but they do scratch (and the bottoms scratch up pretty easily). I also have to be careful not to let silicone touch them in the dishwasher, because one time the edge of a silpat mat was up against the base of one of these glasses and they fused together and needed to be gently ripped apart (I get that glass is made from silica and dishwashers get…