Knee Pads With Ribs RaimondiKnee Pads With Ribs Raimondi. Molded from Plastic this high quality ribbed knee pads come with a replaceable foam inserts strong enough and thick enough to both protect your knee and cushion it at the same time. It also prevents water absorption making it ideal for working in wet environments. Come with two replaceable adjustable elastic strap with hook and loop closure. Price includes vat.