>>1233273If you /out in warm environment and dont for examble need very large sleeping bag then ye maybe 2 or 3 days is doable with mini.
Medium size is great if you also do /trv because its carry on size for most airlines.
But why wouldnt you go for L size? That way you wouldnt need to strap gear outside of the back. And if you choose to do longer trips, you wont run out space. + L looks quite bad ass with Molle pouches if you like that look.