Kraft SOS paper bags combine the practical self-opening sack structure with the natural visual character of kraft paper. At Lanfon Hwakon, we develop kraft SOS paper bags for bakery items, grocery products, takeaway foods, snacks, café purchases, and other suitable food-service applications. The square-style bottom helps the bag stand during packing, while the open top can support fast loading in busy retail or restaurant environments. Customers can customize width, gusset, height, kraft appearance, printed logos, and packing configuration according to product dimensions and brand requirements. We consider bag capacity, product weight, counter workflow, stacking, and carrying when developing kraft SOS paper bags. The kraft surface can be kept visually simple for a natural presentation or combined with custom printing, allowing customers to balance practical food packaging with a distinctive brand style.