Favorite gear bag?

I'm designing a new bag for cycling, climbing, hunting, fishing ("adventures") for holding all your gear while in the field and when traveling.

What features would you like in it? What would be your dream gear travel bag? Thanks!

 

Okay so a bag I've always wanted made is a bag with straps/clips on the back to clip your bike on to hike to the top of trails and ride down. I also think a helmet clip would be awesome (for a full face helmet for the descents) I know it probably isn't practical but I'd definitely buy one if it was made