Outdoor gear these days is built to be light and fast, and backpacks are no exception. Increasingly, manufacturers are designing internal and external frame bags with sophisticated suspension systems that fit the body snugly and move with the torso during rigorous activity. These systems also distribute the pack's weight evenly to prevent neck and shoulder strain. Remember: The more sophisticated the suspension system, the higher the backpack's price tag.
But manufacturers didn't stop there. Another hot trend are packs with built-in hydration systems, which feature removable bladders with drinking hoses. These are handy to have if you know you're going to be on a long hike, away from water sources for an extended period of time.
Manufacturers, which normally offer lifetime warranties against manufacturer's defects, have also steered toward making packs more comfortable to more people. Some packs are gender-specific, and others feature slimmer designs that are contoured to fit women's and children's bodies--a bonus when outfitting a family.
How to Shop
When you're selecting a backpack, remember the old saying: less is more. If you have a pack with a lot of space, you're going to fill it with a lot of gear. Again, consider what your needs are: Do need a small pack for a light day trip, or bigger model for a several-day trip where you'll be toting a sleeping bag and other gear? You'll be happier if you're trekking for miles and you're not carrying around any excess weight.
Once you've determined the size pack you'll need, think about what your basic needs are. Let's stress the word basic. Most people want a backpack with: durable, coated fabrics for tear-resistance; a padded-back covered with wicking fabrics to keep you cool and dry; durable zippers; compression straps to compress loads; contoured load-lifter shoulder straps; a reinforced pack bottom to protect against bumps and bruises; and pockets to store gear and gadgets. Other technical features, like hydration systems and ice axe loops, are cool as well, but be sure they fit your needs because they can drive up the backpack's pricehttp://products.howstuffworks.com/backpacks-buying-guide.htm
