Quick answer
The Kid's Cup Sippy Lid fits the 10 oz Kid's Cup and other compatible Klean Kanteen bottles with the same thread size, but it is not leakproof, so use it for supervised, splash-resistant drinking rather than travel.
Check compatibility before you start
The Sippy Lid is designed for the 10 oz Kid's Cup, which is made from certified 90% post-consumer recycled steel. It also fits other 10 oz Klean Kanteen bottles that share the same neck thread, but it does not fit wider-mouth or larger-capacity models. Confirm your bottle's capacity and lid style before you buy to avoid a loose or forced fit.
The lid is splash-proof, not leakproof. That distinction matters if you plan to toss the bottle into a bag or leave it lying on its side. The soft spout is gentle for developing mouths, but it will not hold liquid under pressure.
What to check before you start
Before fitting the Sippy Lid, check that your bottle is the 10 oz Kid's Cup. The lid is designed specifically for that cup, and it also fits the 10 oz version of the Classic bottle. If you have a different bottle size or model, the lid may not seal correctly or may not stay in place.
The Sippy Lid is not leakproof. It is splash-proof, which means it handles gentle movement but not vigorous shaking or tipping. Keep that in mind if you plan to use it for travel or in a bag.
Steps to Fit the Sippy Lid
- Check the bottle size: The Sippy Lid fits the 10 oz Kid's Cup and 10 oz Classic bottles. Confirm your bottle is a 10 oz model with the same standard neck thread before you start. If you have a larger bottle, this lid won't fit—look for a different lid size.
- Remove the existing cap: Twist the current cap or lid counterclockwise until it releases, then set it aside. Check the bottle rim for any debris or dried liquid and wipe it clean. A clean rim helps the sippy lid seat evenly and reduces the chance of drips.
- Align the sippy lid: Place the Sippy Lid over the bottle opening, centering the soft spout so it lines up with the bottle's handle or logo for easy gripping. Press down evenly. Check that the lid sits flat before threading to avoid cross-threading.
- Twist and secure: Turn the lid clockwise until it stops. Do not overtighten; the silicone spout should sit flush, and the pull tab should be easy to grab. Give the lid a gentle tug after closing to confirm it is seated, but remember it is not leakproof.
- Test before handing to your child: Tilt the cup slowly over a sink to check for drips. The Sippy Lid is splash-proof, not leakproof, so keep the cup upright when carrying it. Use the Sippy Lid only with the 10 oz Kid's Cup; it is not designed for other bottle sizes.
What to know about the Sippy Lid
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Kid's Cup Sippy Lid 2-Pack: The Kid's Cup Sippy Lid 2-Pack is BPA-free food grade silicone, with a splash-proof design and a soft spout. It gives a toddler-friendly drinking rim on compatible bottles while keeping spills low, though it is not leakproof.
Kid's Cup Sippy Lid 2-Pack


