Working in kneeling positions is a great strain on the body and especially your knees. with the CAT CW91 Knee Pads you can rest assured you have the right kind of knee protection. They are made from 100% EVA material and are ergonomically designed to give you the ultimate in protection and wearer comfort. The Caterpillar CW91 Knee Pads are designed to fit all CAT workwear bottoms with top loading knee pad openings. They have been certified according to EN 14404, type 2, class 1. Since 1925 Caterpillar has set the standard of excellence in everything we do. Now you can experience this same level of innovation, comfort and style in your workwear. If you kneel quite a bit in your workday, the CAT CW91 Knee Pads will keep you comfortable and protected with every bend.100% guarantee against defects in materials and workmanship for the life of the garment.