Many pop-up bowls use a tiered or folding edge to collapse or expand. Some designs fold flat into a low profile for packing, while others have a folding edge that pops up into a taller bowl or folds down into a cup.
Portable pop-up bowls are typically collapsible and lightweight. Some models include a carabiner or clip for attaching to bags and are described as easy to transport.
Many pop-up bowls are marketed as multiuse. Examples include acting as a steamer and a serving bowl for baby puree; reviewers also note they can be used for steaming, mashing, heating, and serving.
These listings show pop-up bowls made of silicone and some that combine silicone with stainless steel.
Examples shown include 8 fl oz, 24 ounces, and 3.75 cups.
Some pop-up bowls are made for infants (listed as 0–12 months), others are labeled for all ages, and a few listings target pet use, such as portable dog feeding bowls.