Probably a sammich and some shades. LOL.

 

Welcome to the forum from central Texas.

It depends which swingarm bag you are referring to. Harley gives the dimensions of the bags. Create something of similar dimensions and see what you can fit in it. Everyone's different. Some people like to roll up their jackets others crumble them in a ball and stuff them in. Some people like regular sandwiches others like Dagwood sandwiches.

 

Good Friday morning, I've had bag pn# 90201567, 450ci, since May. And I'm happy with it, small outa the way (sorta) storage.
You won't carry a lot (think minimalist).At the moment Ziploc vacuum bags stay in mine, 1 last 1/5th role of butt tape less cardboard tube, 2 alcohol pads, assorted band aids (not even boy scout quality). 3 vaseline soaked cotton *****, in another bag of matches, 4 bug wipes. Lose items, gloves. Those stay. Still room for day necessity's,

 

You can get a fair amount of crap in the Harley Swing Arm bags

 

 

Hat, water bottle, cigs and Harley folded rain-suit I can get in mine. The latches are adjustable.

 

I have a similar one from another company and honestly there isnt much to fit in there. I was able to fit a columbia jacket in there, thin rain one and have enough room for a wallet, keys and gym lock.

 

Gloves, required documents, smashed up rain jacket, and small tub of gum..... Its surprisingly flexible.

 

I have the XL Leatherworks swing arm bag - great quality and fits quite a bit of stuff.