Suspender boots, parkas and muffs seemed perfectly snug in the laboratory at forty-nine degrees below zero, so next winter the U. S. army air corps pilots in Alaska will try them out on sub-zero arctic flights. Designed and tested at Wright Field, Dayton, the standard arctic equipment of the fliers consists of a fleece-lined leather ensemble. Heavily lined suspender boots with slide fasteners from toe halfway to knee are worn in lieu of trousers and provide better ventilation. Like the suits, these boots are of specially treated reversed sheepskin. Over them goes a three-quarters length jacket, In still colder weather the usual flying cap is discarded for a parka hood. For mechanics, there is a “blizzard cape” completely covering head and shoulders.