These days a lot more bikepackers are choosing flat pedals over spd type pedals - why ? . Often on a bikepacking event you will be forced into a hike a bike situation where it is too rough to ride or maybe even too steep. Traditional cycling shoes with cleats are not great are providing enough grip nor comfort in that situation and the flat pedal with metal adjustable spikes hold onto a solid outdoor shoe very well. There is a vast range of pedals available to suit everyone's budget , from simple cup and cone bearing pedals to state of the art custom CNC machined lightweight pedals with high quality sealed bearings. Choose a pedal that is solid and can take the knocks and one that can be serviced as well . For shoes the list is endless as apart from tough outdoor approach shoes from well known brands now cycle shoe companies are starting to take notice and recently have developed shoes designed for bikepacking. As for me I have been running Shimano Saint platform pedals for 2 years and I love them, they are solid work well and have adjustable metal pins for grip. I have wide feet so my daily work shoes that I wear in the bicycle shop are the same shoes I use for bikepacking or climbing a mountain - The keen Bryce is a super tough water proof leather outdoor shoe and it has survived a lot of abuse and are still very comfortable. If you want comfort on and off the bike check out some flat pedals and shoes - you will feel the difference and your feet will thank you as well.