I walk miles with my summit and lone wolf climber stands. I bought MOLLE straps and attached them to both and I can walk all day with a 30lb back pack strapped to the tree stand as well
Whatever set you go with, buy and learn how to use a climbing safety system. Harness with a lineman style strap to go around the tree as you climb, hang your stand and add your safety rope system. Even very experienced treestand hunters fall and some die every year. Every stand comes with a harness these days I believe. Using a safety line with prussic knot keeps you safe going up and coming down. Plenty of videos available showing the process.