Starter sippy cups are most often made from plastic, stainless steel, or silicone. Some lids and small parts are made from polypropylene.
Capacities commonly range from about 5 ounces up to 10 ounces, with many models around 7 oz and examples available at 5 oz, 8 oz, and 10 oz.
Recommended ages vary by design. Many cups are labeled 6 months and up, some target 12 months and up, and a few list a broader 0–24 months range.
Common spill-control features include leakproof or spillproof designs, one-way valve lids, weighted or improved straws to reduce leaks, flip-top covers for straw hygiene, and auto-sealing lids that close when not drinking.
Typical inclusions are lids and straws; some packages include extra lids, a straw brush for cleaning, and handles or double handles to aid holding.
Features that aid gripping include built-in or double handles, non-slip silicone surfaces, and weighted or wide bases that add stability for small hands.
Most first sippy cups are intended for cold beverages. Some stainless-steel options are described for both hot and cold drinks, and insulated models are noted for keeping drinks cool for many hours.
