>>1448609Nigga wtf are you doing with 20L and a sleeping bag a 20L is good only for daytrips, even ultralightfags go for 30L frameless bags. Hell, I have school bookbags that hold more than 20L
>I want external attachment pointsYou have three options
>military style MOLLE bag>external frame pack>internal frame pack like pic related, see the bottom attachment straps (for sleeping pad, tent) and side attachment straps (tent stakes, snowshoes)Also it's not a good idea to attach a sleeping bag outside. Think about what happens if you encounter rain or set your backpack down on a wet surface