CONGRATULATIONS!!! HOW WONDERFUL to GO TO JAPAN!!
I love my MK Gansevoort Large Nylon tote for traveling. I find it absolutely perfect. I am a senior citizen myself, ( lol!) so I like to keep it light. It is extra large yet very light weight because of the nylon. It is also WASHABLE and PORTABLE, because you can fold it up and put it in your suitcase if you want! You can also hand wash it in the sink! Rinses right out quite easily, and dries fast too! It has a cross body strap for when you are at the airport so you can be hands free to carry your suitcases, etc.. Perfect for layover stops to have all your 'freshen up' essentials like hairspray, toothbrush, heck, you could even fit your blow dryer in it! lol! PLUS it will carry your IPAD or Laptop to boot!! You could have all that right on the plane with you! I noticed some comments about a zip top is best, but I never had any problem with this tote and found it easier to get into quickly, ( it has a magnetic snap closure) unless they are worried about thieves? Not sure, but I always keep it shut with my eye on it anyway and usually have it strapped on with the cross body strap. Never had any problem with it being a tote and frankly, it has spoiled me for traveling. I won't travel without it.
Then, when you get settled in, or at night, you can just remove the cross body strap and be able to use it out to dinner, etc. VERY versatile, but the best part is how light weight it is, so you can carry a lot without wearing yourself out. ALSO, it has THREE outer pockets, to put your cell and things you need quick access to, so you are not fumbling around inside the bag at check outs, etc. Most MK bags don't have these outer pockets which are quite handy when traveling .The leather bags are beautiful, but when you need a large one, they can be quite heavy for long periods of time and they are hard to pack, taking up too much space. This folds up pretty small and then unfolds into a HUGE bag! It is trimmed in leather, in my case, python leather, so it looks nice and pretty, with added strength, plus it has adjustable leather straps on each side!
You could even hang a hammer on those, ( lol!) plus hang your hard hat, by the chin strap! I know all this because my husband is in heavy construction! lol! And I travel with him all the time. I even used this bag when we were overseas in Saudi Arabia on one of his projects, building a military base. So even our trip is similar?. This bag worked so well for me!
They also come in a signature jacquard fabric, which is lighter than the leather as well, but I don't recommend them for your trip, because you could ruin it , and they aren't as maintainable as the washable nylon is. Plus, I get paranoid advertising with signature bags, that have MKs all over it, that I am carrying an expensive designer bag. It can make you a target! So I go for a plain solid, non signature design, to be less obvious. I even lighten up on the jewelry and turn my wedding set around to the bottom of my finger! lol! Creeps will actually follow you to see where your room is, to rob you when you're not there, so the less obvious, the better. Just my opinion, but hey! You can't be too careful these days. Enjoy your trip! WHOOP!!
PS, You could even fit your shoes in it! lol! For your hard hat you could clip the chin strap, on the leather belts on the side of the bag! Those leather belts are adjustable! I'll add a pic of them in a following post.