REI Starlite Pack

Solid pack, well-balanced, durable. Have used it several times a year for the last five years without any visible signs of wear—just dirt.

I've been using this pack for five years now as my primary weekender. It's a very good pack, especially for the money. It's designed/labeled a women's pack, but as a short man I find it the perfect fit for me. 

Everything about it is as advertised: bottom access to the sleeping bag compartment is good. Zippers have never snagged or parted. Main compartment is "expandable." Two exterior pockets hold a surprising amount of stuff. Lid pockets are good; I can even access the outer pocket without removing the pack. Two stuff pockets near the bottom are good for water bottles. 

Only quibbles I have are with the water reservoir pocket—which is technically one of the outer, side pockets and much too small to be useful in that capacity—and the main compartment's diameter—which is just small enough to make fitting my bear canister a little challenging. Neither of these issues has ever really slowed me down; they just aren't perfect. Load balance and sit are excellent, straps are all easily and endlessly adjustable.

Overall, this is an excellent pack.

Edit 9/19: My wife has been using this as her pack for the last several years, as I picked up an external frame pack for myself. Still no real signs of deterioration of any kind, still would recommend if it weren't so long out of production.