The blankets and insulating sleeves simultaneously protect the operator and maintain the temperature of the parts during the welding phase. The covers and cuffs are made with a protective canvas for the part in contact with the workpiece, thermal insulation consisting of treated rock wool with a thickness of 30mm, and an exterior canvas in a grid and reinforced weave for increased longevity, without abrasive fiber for greater comfort and safety in handling. The cuffs also have Velcro to keep them in position. Covers and sleeves are available in several standard sizes. Custom tailoring is also possible.