White label.

The fulfiller prints, packs and ships, and nothing in the box names them. Printful states its shipments carry no Printful branding and its packing slips are white label; Printify states its name appears nowhere on the package or the shipping label. Two defaults still bite. The return address is the fulfiller's unbranded facility until you change it, and Printify accepts custom return addresses only in the UK, Germany and the US, only with providers that support the feature, and only when the order is fulfilled in the same country as that address. The other is customs: domestic slips show no prices, but international parcels carry retail prices on the outside. Orders sent to a backup or partner facility lose the custom slip and the logo, so the buyer who got your branded parcel in March gets a plain one in November, and support hears about it.