I exploit to carry a Gregory Jade 62L pack (too many handy pouches/pockets that temped me to “stuff them”; carrying the little extras to assuage my trail fears. (Purchased at REI and was coached by a highly trained backpacking employee.) I could have been certain to go with any quantity https://johnathanlmkki.theisblog.com/34491019/annapurna-circuit-trek-for-dummies