Sets use a mix of materials, including standard glass, borosilicate glass, crystal, and plastic. Some designs add bamboo accents (often for lids) and components such as silicone or plastic sleeves or parts.
Accessories vary by set but commonly include bamboo lids and reusable straws, drinking lids and storage lids, built‑in straw stoppers, a bonus straw cleaner, and protective silicone sleeves.
Size depends on style. Heights typically range from about 4 inches up to roughly 8.88 inches, while widths commonly fall between around 2.5 inches and 8.15 inches, depending on the glass shape.
Reviewer feedback is mixed: many praise sturdy, high‑quality construction and good durability, while a minority report breakage, cracks, or occasional defects. Overall durability is often praised but isolated issues do appear in some reviews.
Double‑walled borosilicate sets tend to keep hot drinks hot and cold drinks cold for longer than single‑walled glass, while the outer surface stays more comfortable to hold. Product notes and reviews commonly highlight this improved thermal performance.
Kid sets commonly use soft silicone straws, built‑in straw stoppers, spill‑resistant drinking lids, protective silicone sleeves for grip, and storage lids to reduce spills and improve handling for toddlers.