ALPS Mountaineering Orizaba 3900 Pack The ALPS Mountaineering Orizaba 3900 Pack, ideal for short treks, is an asset to every adventure enthusiast! Designed with load lifters for easy adjusting, this product comes with a center aluminum frame stay, and an HDPE frame sheet that provides support. It has a zipper access in front which makes it easier to reach items you may need immediately, throughout your hike. There is an internal hydration pocket that allows you to carry more water on the trip. Apart from this, there is a large mesh front pocket and side mesh pockets secured with a bungee cord to store smaller items. Using the rain-cover provided with the product, you can trudge through heavy rains without worrying about your belongings getting wet. Any extra article you want to take along can always be accommodated at the top of the Pack in an extended spin drift collar with a draw cord. Now with all this packed into one bag, you are sure to be ready for that perfect hassle free journey with the ALPS Mountaineering Orizaba 3900 Pack!