The clothes that you wear on a party bus are important, and a big part of the reason what that is the case has to do with the fact that they will help determine how much freedom of movement you have at any given point in time as well as the kind of covering you would be able to take advantage of in some way, shape or form. Wearing loose clothing is often recommended, but you might not know all that much about the footwear that you should be opting for here which is why we have taken the liberty to make a suggestion that we feel would be quite good for you all in all.
This suggestion is that you should try your best to wear flip flops on a party bus. Flip flops are really comfortable, and they go with the ambiance that an average Loomis CA party bus would be trying to promote. The casual and comfortable nature of a flip flop would make you fit right in, and on top of all of that they would not restrict your movement either which is great since you would ideally want to be able to move around as freely as possible to take in all of the amazing features that a well stocked party bus has the potential to provide you.
Another thing that makes flip flops a good option here is that they can often be taken off without any kind of issues at all. Hence, you can take them off if you want to get really comfortable and then put them back on if the need arises. This would result in an excellent situation for you in terms of footwear.