Gregory Maya 22 Daypack
I purchased this pack as a replacement for a small rucksack/backpack I bought in 1993, which is now coming apart at the seams. I needed a pack that would allow me to do 3 things: 1) Hold a weekend's worth of clothes and stuff for quick overnight trips; 2) Hold my clothes and shower stuff for commutes to work on my bike; and 3) Serve as a daypack for occasional hikes.
I first started out with the Maya 18, but that was too small for my three objectives. So I sold the Maya 18 to a friend, and got the larger Maya 22. This works perfectly! I like the way the front pocket expands, and it is comfortable to carry both walking and riding the bike.