When an item is listed as missing a shell, it means the outer waterproof jacket is not included.
Many The North Face jackets are 2-in-1 or layered systems:
An outer shell (waterproof/windproof layer)
An inner layer (fleece or insulated jacket)
If the listing says missing a shell, you’re only receiving the inner layer, not the outer protective jacket.
The item is still wearable on its own, though it may no longer be waterproof or windproof. It can often be paired with a compatible shell for added protection, but one is not included.
Always check the listing photos and description to see exactly what’s included.