In reply to LeeWood:
Have used a pair of Inov8 mud claws and I rate them but no loop to hang them.
TBH for summer approaches without anything too extreme, I've got into wearing a pair of Tevas. I use a velcro strap that came with a rope to strap them together. Grass, mud, scrambling - fine. Oh no, need to cross a river? Fine, they're sandals and your feet are waterproof. Comfortable to walk in (they're the hiking type, not the flat beach type). Don't weigh much and pack up very small/flat. I also really enjoy that my feet get a chance to breathe, rather then poaching in a suede coffin before getting crammed into a sweaty rubber slipper for the day. It's not for everyone (or potentially anyone else?) but I like it. Your feet do tend to get filthy though.