I have 2-3 ''day packs'' after several yr of refining I've determined that needing it and having are polar opposites.
The country I hunt on foot is subject to spontanous weather shifts, like 40* at the truck in sunshine and 2 miles later at the top of the ridge your in heavy snow and there's a foot on the truck when you get back to it 2hrs later. Followed all week by 60* days at camp and 40s on the ridges.
Now armed w/the above I have the basic essential clothes to layer however in field use I find that my my back is soaked or dry under any of my packs,weather controled if its dry I sweat and vis-a-vis.
My last evolution in the pack was just too much for what I do,unless I have a complete brain failure tragady or somebody else that has and I elect to stay put for the night. I apear to have a thing about freezing and/or hot food as upon cleaning it out I found 4 gas lighters a Zippo 2 pill bottles of strike anywheres and 20+ books of matches. Rag wool gloves 1 pair w/fingers 1w/o ,2 watch caps,spare glasses ,25ft of 5/50 cord ,2 ponchos, 3-1gallon bags , a small diamond sharpening stone,an all purpose knife that's not my Uncle Henry 15UH or the OldTimer 25OT,the other 15 30-06 and 14 45 Colts and a down vest or coat . There's minor 1st aid too. All toll w/my rifle and 7 1/2'' RBH its nearly 30# of gear for going on a 5 mi circut truck to truck. I forgot about the trail mix , jerky, lunch and liter water bladder. I think I can thin it out a lot.
Whats in your day pack ? Do you think mines overkill ?