This is beautiful. But in the pictures of the Travel you can see that the notebook is just snug vertically and fits perfectly without wiggle room. Makes me wonder if a Fields Notes or Clairefontaine pocket notebook might not fit because the dimensions of the notebook that comes with this is slightly smaller. I hope someone @Massdrop can verify and try this with one of their Field Notes. Thanks.
StrummDaniel from Satchel & Page here. Yes, a Field Notes will fit in the travel journal. The notebook in the photo is of the exact same dimensions as a Field Notes.