When you prepare for an extended hike, whether at home or on vacation, a good backpack is essential. Backpacks for hiking come in two varieties - internal frames and external frames.
* External frames can usually carry heavier loads, but they can easily get hung up in close quarters or dense growth.
* Internal frame packs are ideal for caving or other trips where you are likely to encounter a tight squeeze.
Whichever you pick, make sure you have your pack fitted to your body by an experienced professional to avoid discomfort on the trail.