Due to the altitude Rousseau wore an air mask and "was equipped with three flight suits: one in silk, one in linen, and one with fleece lining; three pairs of gloves: two in silk and one in fur-lined leather; one helmet in leather; large antifreeze goggles; an inhalation mask; a portable bottle of oxygen; a little plank board placed on the front parachute bearing two altimeters, the chronometer and the heavy and cumbersome registered barograph of the International Aeronautic Federation (FAI)".