The Hot Dog Duffel Bag is a bag that first appeared in the short "Unboxing". Its first full-length episode appearance was "Same Old World" and has also appeared in "Mr. Greg". Steven showcases it as the highlight of his unboxing video.
The Hot Dog Duffel Bag is a large duffel bag shaped in the form of a hot dog. It has a beige bun with mustard and ketchup toppings, with two handles attached to the sides.
According to Steven, an estimate of the bag's length is six-and-a-half hot dogs long (or 7 metric bratwursts).
Its material is stain-proof, as shown when the Slinker's goo fell on it and it was easily cleanable.