45 is better. Lv travel bag 45 is small in size, 45×27×20cm in length, width and height, which is convenient to carry and suitable for people who are not tall. The lv travel bag of 55 is too big, with a length, width and height of 55x3 1x26cm, which is inconvenient to carry, and this size can already be replaced by a suitcase. LV men Keepall series, covering travel bags, travel bags and so on. , practical design, fashionable appearance, favored by fashionable men.