Camelback backpack, loaded with just enough supplies to suit your daily needs, & take care of an unforseen emergency.
For me that includes a small first aid kit containing bandaids, ibuprophin, gause, & steri-strips, & a red bandana.
T.P. in a ziplock bag, A bunch of extra para cord, etra ammo, extra knives ( i like an extra huntin knife, & a Leatherman), a lighter & tender, a snack, gps, Bino's, babywipes, flagging tape, & water. Also a Cell Phone if it has a camera.
I cary my .40 S&W crossdraw so it doesnt bang on my rifle stock while the sling is on my shoulder.......But your in Canada, soooooo maybe a sidearm is out for you.........
My Rangefinder is always on me, like my Rifle, Knife, & Pistol. Never gets lost that way, & always there when I need it.
My rifle has adjustable bipods, & my pack can be used as a rear bag for L/R shots.
I dress in layers, & never fill my pack so I can shed layers as needed, & I always have room for "stuff". Plus I hate a heavy pack. I also dont care to pack half of a sporting goods store around with me. Thats just my style of spot and stock Bear huntin in my area. Other folks stay out for a couple days, & that obviously encompases a bit more than my day pack if you want comfort.
Keep it as simple as possible or else you wind up with all kinds of crap you never need or use. Bear huntin is supposed to be fun
The pic in my signature is of me with my pack & all my daily gear the country I Bear hunt in, so you can see why I hate extra weight.