What Kind Of Backpack Should I Bring Hiking? When choosing the best hiking backpacks, you must consider the size and type of hike you will be doing most often. For example, day hikes require less gear than multi-day backpacking trips, so that a smaller backpack may suffice. However, if you plan on mainly doing overnight or multi-day hikes, you will need a larger pack with more capacity to carry all your gear. Other considerations include the climate you will be hiking in (hot weather requires different equipment than cold weather) and whether you will take a lot of food and water (which adds weight).