IF your going that route you might want to get a food pack that has a good waist-belt/sternum strap?
The difference splitting the load between shoulders and hips is very noticeable. KONDOS outdoors makes a good  pack at a reasonable price.

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I like Granite Gear and this is my food pack.

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I sent it off to KONDOS to have 2 cinch straps put on each side to snug the load tight and also allow for attaching those side pockets I talked about. Cost was very reasonable and well worth it.