Firstly these trail bags fit the OE front crash bars of my 2025 RE Himalayan 450 perfectly. Quick and easy to put on with only two Velcro straps. Then the roll top opens wide into a kind of tube or throat into a wider volume at the bottom of the bag. I can get a tool kit in a case, a tyre pump, a puncture repair kit and a small first aid kit in one bag. On the other side I can carry a chest bag for fishing gear, plus fishing gloves and two fly reels.
I can recommend these unreservedly.