How to Keep Your Cool If You're a Mech First Day on the Job (Part 1 of 2) By Vera Brook Damn, the exoskeleton was hot. Two minutes strapped into the smart harness with its thick exospine and the oversized, carbon-fiber limbs that grew from it, and sweat pooled between Jenna’s shoulder blades, over her own spinal column. The whole thing hummed with electronics and throbbed with support motors. Nothing like the black top, mini skirt, and sneakers she’d worn on her previous job, waiting tables and tending bar at Lazy Dog’s. But the pay was three times what she made in tips, and she had the evenings to herself. She was moving up in the world.