25-30L Backpacks for MTB Bikepacking

Have been planning a few trips this summer to the South Chilcotins and am trying to sort out gear options. On a 4 day trip last year I ran a bar bag and 28L backpack and it worked for packing size but was not comfy at all for long days on the bike. I’m wondering if others have tried other backpack options in this size range. I was looking at an Osprey Talon Pro 30 as a more traditional option, but am also curious looking at more UL fast packing or trail running options like the Hyperlite Mountain Gear Aero 28 with the vest style setup. Any recommendations appreciated!