12 pairs in one OPP polybag, 20 dozens in one export carton, 240 pairs/ctn; or 600 pairs in a compressed bag, can save more space, About 16,000 Dozens for a 40'HQ. About 6,100 dozens for a 20'GP. Compressed packing can load about 240,000 pairs(20,000 dozens) in a 40'HQ