If you are planning of going out for a country side trekking anytime soon then a gregory backpack is a must have for outdoor lovers. There’s nothing more ideal than this backpack for a comfortable hiking in hot and humid weather. It has been the first choice of many because of its ventilated design that gives your back enough space from the pack so it keeps you cool and dry. Even a mid-sized backpack has good amount of storage and pockets that will allow you to easily arrange your stuff. And the new designs will give you more comfort as it effectively transfer the load off your back and onto your hips.