● I often stay in hotels and accumulate disposable slippers from the "take one" selection, as I always stay at the same hotels. ● Previously, I could fit four pairs in a Nekoposu cardboard box, but because the NAVY BLUE slippers are thick, only two sets fit. ● These are fluffy and thick, so would they be suitable for those who think thin slippers wear out quickly, or for those who want to have some thicker ones on hand for emergencies? ● At my house, we also keep thick and colored slippers on standby just in case. I think it's a good idea to have easy-to-walk-in slippers ready, especially if you need to evacuate to a gymnasium or similar. ● The slippers come in plastic bags from the start, and those bags are also thick plastic, so I will pack them in the Nekoposu cardboard box as they are. Even two sets are quite packed. ● As a bonus, I'll include a disposable eye mask and earplugs for one use, for those who don't like bright lights when sleeping.