Carl's fall-protection gear, which he possesses but pointedly declines to rely on.
As Louis tells the crawlers to jump from the crippled Party Planner, Carl considers his fall protection: "I had my quarter splat fall protection, but I didn't trust it."
Rather than test it against a plunge through burning rock and smoke, he reads a scroll of Controlled Feather Fall instead. He still lands hard enough that Elle compares it to a comet strike.
Carl's baseline fall mitigation, held in reserve and distrusted.