Lightweight, sturdy, and waterproof material. It looks straight, but when you unbutton it, it expands.
It seems highly usable with many internal pockets~ The zipper opens very smoothly and can be fully extended, making it easy to see inside and clean.
The only slight disappointment is that the front pocket is not as large as in the photo. I thought it would fit quite a lot loosely when seeing the protrusion, but it's more of a snug style so there isn't much storage space. And I wish there was one more small pocket on the back panel... but it's still great as it is.

Very nice item. Fast shipping. It's a bit small.

Thank you to the seller and thank you to the delivery company, the product is as described.

Normal quality. But most importantly, the size matches what the seller stated: 40×30×20.

Large and spacious, I am sincerely very satisfied; it was exactly what I was looking for.