What's the best type of travel jewelry case — roll, folio, or hard-shell?

Rolls are the most compact and pack flat, which is why they dominate carry-on packing recommendations across the reviewers we read. Folios sit in the middle, opening like a book with zippered pockets that protect delicate chains. Hard-shell cases offer the most protection for fragile or valuable pieces but take up more room. If you primarily travel with stud earrings and a few chains, a roll is usually enough; if you bring statement pieces or heirloom jewelry, a structured or hard-shell case is the safer call.