I use these to play MP3 music in my car so I was particularly looking for smaller capacity drives. (Why use a 64GB drive when you can only fit 2GB of music on each?) If I could go down, 8GB or even 4GB I would go for it, but 16GB is the smallest size you can find. . these days. I've been using SanDisk Cruzer Fit flash drives for a long time. I find them reliable and convenient (physically) for my application (they are very small - about the size of your thumbnail's fingernail). The only complaint is that there are five drives in the package but only two belts. You couldn't include 5 straps? OK.
Samsung BAR Plus 128GB - High-Speed USB 3.1 Flash Drive Titan Gray (MUF-128BE4/AM)
67 Review
Compact and Convenient: SanDisk Cruzer Fit USB 32GB Flash Drive (SDCZ33-032G-A11)
66 Review
32GB SanDisk USB Flash Drive (SDCZ430-032G-A46)
78 Review
Kingston DataTraveler SE9 32GB USB 2.0 Flash Drive for Reliable Data Storage (DTSE9H/32GBZ)
69 Review
π Seagate Expansion 3TB Portable USB 3.0 External Hard Drive (STEA3000400) in Black
60 Review
8TB Seagate Backup Plus Hub Desktop Hard Drive with Data Recovery Services
56 Review
2 TB External HDD ADATA DashDrive Durable HD650, USB 3.2 Gen 1, Blue
55 Review
18 TB External HDD Western Digital WD Elements Desktop, USB 3.0, black
95 Review