Ultra-Soft Synthetic Leather Knee Pads - MediumSometimes projects require hours of kneeling or crawling, usually over rough, sharp, or uneven surfaces. The Cat Ultra Soft Synthetic Leather Knee Pads Large will help protect your knees so you can get the job done pain free. These will probably be the most comfortable knee pads you will ever wear, with a 5 8 inch EVA foam inner pad cushioning the knee. Designed with function in mind to protect your knees while minimizing uncomfortable strap binding.