1. PRACTICAL USE: Great for hot days and not wanting to wear a jacket/coat for protection. Saves the user's skin from welding or with fibreglass work. Keeps the user's arms protected from spatter or burn. Breathes well, comfortable even on a hot day out in the sun. Improves arm mobility and comfort. Super light - good for welding work. Elastic top and bottom design for fit. Prevents debris from contacting the arm and keeps the sleeves in place during arm movements.