Renting Backpacks Know Where I Want To Go In Ireland, Now, How To Do It?

Know where I want to go in Ireland, now, how to do it? - renting backpacks

My friend and I are in Ireland in the near future, and we know the areas you wish to attend (at least) a general idea, and we pack. Are there ways to get from one place to another without having to rent a car in general? As the coaches? Also, if anyone have an idea of the type of packaging, and footwear, it would also be useful ...