Bucket Boss, Pro Leather Knee Pads, Rugged Top Grain Leather, Constructed With Rivet Reinforcements, Touch & Comfortable Leather Construction Give Level Of Security While Doing Work On Your Knees, Felt Lining For Absorbing Moisture To Prevents Knees From Sliding Around In The Pad While Working, Adjustable Buckle Strap To Securely Tighten The Knee Pads To Comfort Level.