Designed in Bondi Beach, Australia, these hand blown glass tumblers from SoL Cups are ethically produced using sustainable materials and are completely plastic free. Made from borosilicate glass, these tumblers are very strong and sturdy and extremely durable yet incredibly light making them the perfect travel cup. SoL tumblers are sexy & sleek and are a reflection of your smaller environmental footprint, without sacrificing convenience. Easily take them with you wherever you go.