The On The Rocks DOF is made of SON. Hyx Break Resistant Glass. Luigi Bormioli's proprietary SON.hyx glassware formula represents an exciting fusion of elegance and technology. These machine-blown glasses have laser cut rims, ideal weight, thick shams, and maintain their clarity for up to 4000 industrial dishwashing cycles. The set includes 4 traditional 15 oz. Double Old Fashion glasses that have a beautiful bottom treatment on the sham.
These glasses are beautiful, and an elegant glow-up for any "Collins" or highball cocktail. I love the shape, which is square but rounded for easy sipping. And the base of the glass has a sculptured shape underneath, which lends to a pretty look when the drink is served. I bought the glasses because I already had the "double rocks" size glasses of this brand, and we love those as well.. Tg. Winston-salem, NC. Sat Jun 06 2026