Summarize this article in one sentence.
Depending on the type of travel you are doing, choose either a backpack or a suitcase. Suitcases are great for vacations that are wholly urban, at resorts or wherever else, while backpacks are better for backpacking expeditions, country travel, rough travel and travel in areas with few amenities and concrete paths.    {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/c\/c3\/Pack-for-a-Long-Trip-Step-1Bullet1-Version-2.jpg\/v4-459px-Pack-for-a-Long-Trip-Step-1Bullet1-Version-2.jpg","bigUrl":"\/images\/thumb\/c\/c3\/Pack-for-a-Long-Trip-Step-1Bullet1-Version-2.jpg\/aid108433-v4-728px-Pack-for-a-Long-Trip-Step-1Bullet1-Version-2.jpg","smallWidth":460,"smallHeight":334,"bigWidth":"728","bigHeight":"529","licensing":"<div class=\"mw-parser-output\"><p>License: <a rel=\"nofollow\" class=\"external text\" href=\"https:\/\/creativecommons.org\/licenses\/by-nc-sa\/3.0\/\">Creative Commons<\/a><br>\n<\/p><p><br \/>\n<\/p><\/div>"}

Summary:
If you don't already have it, purchase high quality luggage that is easy to transport.