My sons Scout troop just scheduled a backpacking trip into Desolation next weekend and my 11 year old son outgrew his Kindercone this summer so I'm looking for something light to get him thru the trip and maybe it will last him thru next year with alot of luck. Kelty cosmic, etc... Not looking for a WM or top tier bag since he will be growing soon!! Anyone have a 30 ish degree bag that needs a new scout owner? Thanks!