Airsuit

... and in a paroxysm of fury clawed at the convict's airsuit as though he could rip the fabric apart with his bare hands.

Opening the forward hatch, he winched down the little platform flyer, loaded aboard a spare airsuit and spare tanks of oxygen, and without further ceremony set out for Thumbnail Gulch

He stopped removing his airsuit and pulled it back on again, all but the helmet, which he left lying on the ground.

Spacemen call it an “airsuit liner” because it is made to fit under an airsuit and is padded and reinforced at the friction points.