I use a Kelty Redwing 50. they are available in multiple capacity ranges and colors.

very reasonably priced.

my son uses an REI pack that is almost identical in construction/design/comfort. my wife picked it up at a garage sale for $7. I love that woman. smile

First teach a child to love God, second teach him to love family, third teach him to fish and hunt and by the time he is in his teens no dope dealer under the sun can teach him anything. Cotton Cordell