There are two sizes: the MINI is about 12 in × 10 in × 3.5 in with roughly 5.6 liters capacity, and the MIDI is about 14 in × 12 in × 5.5 in with roughly 13 liters capacity.
The backpacks use polyester shells and commonly include a water-repellent or water-resistant outer finish.
Many models list a zippered interior wallet pocket, two elasticized interior pockets, and a front zip or diagonal exterior pocket. The larger MIDI also includes a side bottle pocket.
Age ranges vary by listing; many target young children and show ranges such as "0–14 years" or use labels like "All Ages." The backpacks are described as suitable for carrying books, snacks, tablets, toys and similar school or play items.
Care instructions vary by model: some listings recommend spot-cleaning or wiping clean, while others note a machine-washable outer shell.
Most list a zip closure for the main compartment and include easy-grab handles plus adjustable, padded shoulder straps.
