The picture is misleading because it looks like it fits nicely over the amplifier. In fact, it's a thin plastic tarpaulin with a nice embroidered logo. There's no bottom: you pull it over the amplifier from above. It has no lining or support. There's a hole where the handle is, where you can hold the amplifier's handle. I think rain gets in this part too, so I don't see any point in it, maybe it protects against dust and a few drops of water, but not from impacts or regular rain.