Jack Wolfskin brand MENS Highland Trail 36 Liter Hiking Camping Backpack very well used but plenty of life left (see pictures for fraying and scuffs and missing zip pulls) so many useful pockets from experience, you can definitely fit more than 36 liters. I've used this on many hiking trips, overnighters and overseas and stored everything I needed it's indestructible and has never ripped after many trips (my brand new Rei bag has multiple rips and holes from 1 trip) only reason I am selling is because I technically bought a men's pack instead of a women's and I've finally accepted it doesn't fit me properly and was causing me back issues