The British brand Belstaff that built its name on moto-inspired outerwear, left the open road behind and braved the desert dunes, showing off a handsome collection with a vintage military feel and strong whiff of “The English Patient.” The designer spread an abstract desert-map print over waxed cotton parkas and jackets, and gave knits some heft with waffle and honeycomb weaves for a lineup that remained true to Belstaff’s reputation for stylish apparel that also performs.