This is the Peak Design Travel Backpack 45L in black. I planned to use it with a camera cube for domestic business trips, but the trip was canceled shortly after I bought it, so I've been storing it at home unused. I purchased it from Gin-ichi Online, a domestic authorized dealer. The purchase price was 53,900 yen. It's in excellent condition as it's practically unused. I will remove the listing if it doesn't sell before the end of the "Super Mercari Sale" and will use it myself.