G-Technolgy's G-Drive mobile USB-C uses the latest connector, and performs well (mostly) for an external 2.5-inch hard drive. Style-wise, it's a nice match for Macs, though it's a bit pricey.

SanDisk Professional G-DRIVE ArmorATD's rubber casing is crush resistant and has a IP54 rain/dust rating. (Image credit: Rebecca Spear / Windows Central) ...