Backpacks.

I had this feature on a server I used to play long ago. So, there were backpacks, which came in three sizes Small, Medium and Large. Each size had a different object and it allowed a player to carry more amount of drugs and weapons he can carry without a backpack. I guess there should be something like that on BA:RP too. What you guys say?

The suggestion is good in theory, don't think it would work out too well practically though you have my support.

i would like to see this on the server

sounds good 

I like the idea.

I have seen this on many servers, well not backpacks but briefcases. Same concept diffrent container.

and everyone who is wearing a backpack would get robbed

This is Hard roleplay, not fucking tibia xDDDDD

There could be backpacks, briefcases and handbags that you can buy to store more drugs, guns, money and many other items but they should be allowed to be stolen in their entirety  or dropped somewhere so you don't see everyone carrying backpacks let alone to store millions worth of items while it would have a use for gun/drug trafficking. A small, medium and large is a little too RPG, I think just one size is fine and people choose whatever would be more suited for their specific needs.