Most toddler insulated cups have stainless steel bodies (often specified as 18/8 stainless steel). Lids are typically plastic or silicone, and straws are commonly 100% silicone.
Common capacities in the results are about 9 oz, 10 oz, and 13 oz. Some broader search results also include larger travel-style mugs around 20 fl oz.
These products target a range of young ages—listed suggestions include ranges such as 6–36 months, 12 months and up, and 3 years and up.
Common anti-spill features include locking lids (twist-lock or flip-lock), one-way valve lids that close when not drinking, straw stopper rings to secure the straw, and snap/seal travel lids designed to be leak-proof when closed.
Common lid styles include straw lids with silicone straws (often combined with twist- or flip-lock closures), one-way valve lids, and snap/seal travel lids designed to be leak-proof when closed.