This bag fits everything you need for a weekend trip. 3 pockets on the outside for keys, tools, and such. A vented, collapsible section for boots to keep your clothes clean. One large cavernous main section for the rest of your gear. IMO, the zip out pocket looks kind of lame. I don't know how I would make it cooler, but don't let that stop you from getting this duffel. It's well made and functional.