I exploit to hold a Gregory Jade 62L pack (a lot of easy pouches/pockets that temped me to “things them”; carrying the small extras to assuage my trail fears. (Obtained at REI and was coached by a highly skilled backpacking employee.) The Coyote line of backpacking backpacks comes in dimensions https://cruzvtwcv.ampblogs.com/the-definitive-guide-to-hiking-rain-jacket-70960320