The Maxpedition Falcon II Pygmy is an excellent all around backpack, including a warm weather backpack. It’s just big enough for a day long hike, or a light weight overnight camping pack, without being too large the hiker is tempted to carry unneeded gear.
One of the questions I have been asked, “what makes a pack a warm weather pack?” In my opinion, its the packs size – its so small you can not carry spare clothing. In a cold weather camping or hiking situation, you will probably want to bring extra clothing, maybe a hat gloves, extra socks,,,, the usual stuff that hikers and campers my need in cold weather.
In hot weather you can take clothing off, in cold weather you have to have extra clothing to put it on. If the extra clothing is not in the pack, there is nothing to put on.