A partner and I are hoping to hike over a 4 - 5 day trip in Glacier National Park in August (hot days and cool nights).
We are trying to decide on backpacking packs size.
We can share a tent and cooking supplies (and other small things).
We currently have this tent (REI half dome). (My estimates are this is about 19 L)
We will each have one sleeping bag like this (REI trailbreak 30) (About 6 L each).
We feel we can each go without a sleep pad if we do not have the space for it.
Of course there is clothes (rain stuff too), food, and other small items to pack along.
Now, normally people seem to recommend about 60L for a pack for 3-5 days. However, I don't know if these take into account the items that can be shared among a pair.
Instead, I was imaging a womans 45L pack for my partner and a mens 55L for myself.
So my question is, what packs should one get if they are backpacking with a partner on a 5ish day trip?