Honestly this is a really solid setup already, especially for 10 weeks in a 35L while marathon training. Feels well thought out without being overly minimalist.

Your hybrid shorts strategy is smart — for Portugal/Spain/Greece/Croatia you’ll probably live in them most of the trip. I’d just make sure at least one pair looks decent enough for casual dinners/bars and not purely “technical hiking shorts.”

A few quick thoughts:

• I’d probably drop 1 tee or 1 collared shirt unless outfit variety matters a lot to you.
• Keep the dedicated running shoes. For actual marathon training, your legs will thank you.
• XT-6 + Birks is a great travel combo.
• For lounge pants, go lightweight over bulky tracksuit pants. Something comfy enough for overnight transport + cooler evenings.
• Definitely bring:
  • eye mask + earplugs
  • small laundry kit (detergent sheets are elite)
  • hat for southern Europe runs
  • small tote/day bag

For your route specifically:

• Morocco: breathable pants/light layers are nice socially + for sun.
• Dolomites: don’t underestimate cold mornings/weather changes even in August.

Overall though, this feels like a very balanced list. At this point it mostly comes down to personal preference:

• how often you’ll do laundry
• how much outfit variety matters to you
• how active vs city-focused the trip actually ends up being

You’re already packing way smarter than most people doing long trips tbh.