metal cups

Most metal cups are made from stainless steel; many product listings specifically cite 18/8 or recycled 18/8 stainless steel as the construction material.

Common capacities include large tumblers around 40 ounces, medium sizes like 30 ounces, everyday sizes near 20 fl oz, and smaller 8 oz sippy cups.

Cold-retention claims vary by design and manufacturer. Listing examples include about 9–11 hours cold, claims of 'up to 40 hours' cold/iced, and occasional listings advertising '2 days iced'.

Age recommendations vary by model: some cups are made for toddlers (for example, listings labeled 'Suggested Age: 6 months and up'), while others are marketed as suitable for 'All Ages.' Check each product's stated age guidance to confirm suitability.