McCall's 5837; ©1977; A John Weitz Original - Men’s Jumpsuit. 3 Size Pattern Series. Jumpsuit A and B have buttoned epaulettes and long sleeves with buttoned cuffs. A has concealed front zipper, notched collar, buckled front belt drawn thru pocket extensions, and elastic in back waistline casing, patch pockets have buttoned flaps. Jumpsuit B or C has front zipper, collar buckled belt draw thru carriers and zippered patch pockets. B has lower leg side zippers