Start with the choice between bifold and trifold, because it decides how the wallet wears. A bifold folds once and lays your cards in a horizontal row; it is the slimmer, more common format. A trifold folds twice into a shorter, chunkier shape and stacks cards vertically, holding more of them at the cost of thickness. If you are not sure, our bifold vs trifold comparison walks through it — but as a rule, choose a bifold unless you genuinely need the extra capacity.
Within bifolds, the modern additions worth having are an RFID-blocking layer and a flip-out ID window, both of which the Fossil Derrick and Ingram include. Nearly every wallet in this roundup blocks RFID; if that matters to you, confirm it on the exact variant, because a couple of the fashion-brand bifolds do not advertise it. The flip ID is genuinely useful if you show a badge or license often, and adds no real bulk.
Leather grade and finish are where these separate. Fossil and Timberland use dependable genuine leather with clean finishing and warranties; Carhartt's oil-tanned leather is built to scuff and darken on a job site and looks better the harder your week is; the fashion labels charge partly for the name. If you want a bifold that will genuinely outlast the rest and develop a patina, the honest answer is to look at a full-grain maker — we cover those in the best leather wallet brands guide — but for most buyers a well-made genuine-leather bifold at this price is the sensible call.
The mistake with bifolds is overstuffing. A bifold is happiest with six to ten cards and a few folded bills; pack it with a dozen cards and a fold of receipts and it turns into the brick that gives fat wallets a bad name — uncomfortable to sit on and quick to blow out at the fold. If you are carrying that much, a trifold or a dedicated cardholder plus a money clip handles it better than forcing it into a bifold. Every pick lists its published capacity so you can size it right.