Best Plastic-Free Sippy Cups & Toddler Cups
Transition cups for toddlers - spouted, straw, and trainer cups.
Why plastic matters here
The recurring parent complaint: "BPA-free" sippy cups still have polypropylene valves, plastic straws, and plastic lid mechanisms in direct contact with the drink, plus they get dishwashed and left in hot cars daily. Only a handful of lines are genuinely plastic-free, so the research burden on parents is high - exactly the gap this site fills. (Pediatric guidance to skip sippies for open/straw cups is worth mentioning as context.)
What to look for
- The valve is the hidden part - ask what makes it leak-proof
- Stainless body + silicone spout/straw is the realistic best case
- Handles and weighted straws add more parts to check
- Open steel/glass training cups are the simplest truly plastic-free path
Our picks
One piece of 100% food-grade silicone with no valve, straw, or plastic lid - so there's no hidden polypropylene part to worry about. It's an open training cup, which is what pediatricians recommend over spouted sippies anyway. The simplest way to skip plastic entirely at the transition stage.
Pura Kiki
The same all-steel Kiki body takes a medical-grade silicone XL Sipper spout, so the drink path is steel + silicone with a stainless (not plastic) collar. Leak-resistant and unbreakable - the best spouted cup for minimizing plastic, and it converts back to a straw or infant top.
Recycled-steel cup, a stainless steel straw with a soft silicone flex tip, and a food-grade silicone straw lid - no plastic in the drink path. Just choose the silicone straw or Sippy Lid, not the older polypropylene Classic Sippy Cap.
A steel band plus a silicone sippy spout turns a glass mason jar into a spill-resistant cup - liquid touches only glass, steel, and silicone, with a steel band instead of a plastic collar. Same system your baby bottle used, one stage later.
Considered, but not picked
Popular options that look plastic-free but aren't — and why.
Klean Kanteen Classic Sippy Cap
The steel cup is great, but this specific sippy cap - the default on the 12oz Classic - is polypropylene (#5), and the spout you drink through is the plastic part. Klean Kanteen's own silicone Straw Lid or Sippy Lid on the Kid's Cup fixes this, which is why we pick the silicone-lid version and flag the PP cap here.
Elk and Friends Stainless Kids Cup
A 304 steel cup with silicone straws and a silicone sleeve - most of it is right - but the lids (both the straw lid and the storage lid) are BPA-free plastic, and the straw-lid is what the child drinks through. The steel body and silicone straw are good; the plastic lid in the drink path is the compromise, so it sits behind the all-silicone/steel picks.
Lifefactory sippy-cap conversion
Popular way to carry a glass Lifefactory bottle into toddlerhood, but the sippy cap and its ring are polypropylene, so the toddler drinks through plastic. The glass body is nice; the plastic spout is the same problem most "BPA-free" sippies have. A steel or silicone-spout cup avoids it.
"BPA-free" polypropylene valve sippies (generic)
The category's core trap: most mainstream "BPA-free" sippy and straw cups rely on a polypropylene valve and/or a plastic straw and lid mechanism in direct contact with the drink, and they get dishwashed and left in hot cars daily. BPA-free is not plastic-free - the valve is the hidden part. Ask what makes a cup leak-proof; if the answer is a plastic valve, it belongs here.
Related: Baby Bottles · Kids Water Bottles · Kids Plates & Bowls