The Meca over gloves have been designed to wear over normal mechanics gloves for where additional heat protection is required.Use with your own gloves to add protection against heatKnuckle protector reduces the risk of 'spanner rash'Shock absorbing foam layer is ideal for when using impact wrenchesThe Sparco Mecha over gloves are manufactured from a fire retardant material with fire proof silicone inserts. They are ideal for mechanics who only occasionally require protection against heat. They can quickly and easily be fitted over mechanics gloves when needed.