Hey,

I'm searching for a backpack and looking for suggestions that fit the following traits:

For everyday use:
- waterproof (should hold whatever rain is coming down and not have me to second guess if my laptop will die)
- around 40L in size, should fit laptop, gym clothes towel, notebook, rain jacket pants, possibly groceries every 2-3 days, general small items that randomly appear in everyday life
- suitable to wear while cycling (around 30min)

For once a month 2-3 days travel:
- large enough to fits clothes for those days
- fit into carry-on regulations

So far I've considered:

• Mission Wokrshop R6 Arkiv: Really like the modular concept here, could turn one of the smaller assecsories into a sling bag (which I'm in the market for too)
  
• Life Behind Bars Peloton: Might be too small, they have nice accessory bags as well
  
• Patagonia Waterproof 40L: Definitely waterproof, I do have many Patagonia items that serve me very well

Additional bonus would be easy availability in Europe.

Thank you in advance!