Heavy duty StretchBack extends across fingers and back of hand to enhance ventilation, flexibility, comfort and fit. * Wrap-around thumb protection cushions and covers the inside of the thumb with a second layer of leather to protect against abrasion. * Reversed top grain leather on palm maximizes abrasion resistance without compromising tear strength. * Double leather palm and fingers surround a layer of resilient foam to protect hands against abrasion. * Double stitched throughout for superior durability and abrasion resistance.