>>2070614>fitHow it physically fits on your body. Some packs just aren’t a good match. You really won’t know until you try it. Look at pants. The size on the label might be what you always wear, but the crotch might be too high, the waist too low, to tight around the thighs, etc. You might know your torso length and like everything about a certain model but for some reason it just doesn’t fit your body or doesn’t feel right.
>suites your specific needsIf your using it for anything other than recreational backpacking, you might need a technical pack (a pack designed around a specific purpose). Otherwise, you’ll have to decide on things like compartmentalizations and roll top vs top lid.
>weightPretty important. You also need to know a packs maximum carrying capacity. Lighter packs generally can’t carry very heavy loads, but in current year your load shouldn’t be very heavy.
>ventilationHow well your back can breathe with a pack in it. Very important in warmer/how climates like the the Deep South, but still somewhat important everywhere. Osprey started using trapeze suspensions and slightly curved packs like 8 years ago and very few have caught up.
>amenitiesThese are the little options that make trips more enjoyable. They’re not absolute necessities per se, but I use them constantly. Things like hip belt pockets, shoulder strap pockets, hydration blaster sleeves, big stretchy back pouches (sometimes called kangaroo pockets), ice axe loops... little things that make a good pack into a great pack.
>things to avoidOverbuilt material. You don’t need 1,000d fabric and 2” reinforced polyester grosgrain molle webbing for recreational backpacking. It will only weigh you down. Bottom sleeping bag compartments are pointless. Panel loaders are for traveling and a pain in the ass to dig around in during the day. Some packs are still made with compression straps over the side pockets, rendering one or the other useless.
