Hex’s new Radar collection features a water-resistant rip-stop exterior fabric, and we’ve received both the Radar Convertible Backpack ($100) and Radar Laptop Briefcase ($110). While we’ve seen these form factors from Hex before — the Convertible Backpack and Laptop Briefcase — the navy Radar look is both handsome and rugged. Both products feature black coated canvas trim and genuine zipper pulls. Both items also allow for different…