As per request by a user I’m gonna show you how you get the duffle bag in GTA Online.
1. Make shure you wear simple clothes like a shirt and shorts.
2. Join a quick job heist (Make shure that you join a heist setup and not a heist finale)
3. Once you have choosen a heist change the settings of “Heist Clothing” to “Player Saved Outfits”
4. Start the Heist and then exit as fast as possible
5. You should respawn with the duffle bag
Sometimes the glitch won’t work the first times. Don’t get frustrated and try it once more.