Wear high top boots fully laced to prevent sparks from entering into the boots. Use fire-resistant boot protectors or spats strapped around the pant legs and boot tops, to prevent sparks from bouncing in the top of the boots. Remove all ignition sources such as matches and butane lighters from pockets. Hot welding sparks may light the matches or ignite leaking lighter fuel. Wear gauntlet-type cuff leather gloves or protective sleeves of similar material, to protect wrists and forearms.
Leather is a good electrical insulator if kept dry.
Direct any spark spray away from your clothing. Wear leather aprons to protect your chest and lap from sparks when standing or sitting. Wear layers of clothing. To prevent sweating, avoid overdressing in cold weather. Sweaty clothes cause rapid heat loss.